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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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How to mill a flat surface
Related to my yesterday's vise refurbishing project, where I milled a
little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#2
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How to mill a flat surface
Ignoramus9931 wrote:
Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Flycutter |
#3
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How to mill a flat surface
Ignoramus9931 fired this volley in
: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-500S-Vise/Rep ainting-Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Iggy, you need to square up the bit to the work. Your vertical axis is off-kilter. The ridges are an artifact of each cut being a slightly radiused groove, rather than a "true" face-milling. Usually, it just involves squaring up the head in its rotation. Rarely, but on old, worn machines, the table might not be square vertically along the y axis. That one's harder to fix, and often not worth it. LLoyd |
#4
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How to mill a flat surface
A flycutter is an excellent suggestion. That is what I used when
doing the exact same job. Be sure that the mill head is trammed. No flycutter? Use a boring head and a single point tool set to the diameter needed to cover the area in one pass. A surface grinder works too. Bob |
#5
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How to mill a flat surface
It is not possible to get a flat surface with a milling machine anymore than
you can get with a cup grinder. The surface looks flat and for most applications is flat enough. This is where the old fashion planer and shaper have the task covered. Fly cutters, face mills and cup grinders are all subject to spindle deflection and tramming issues, where the stroking pointed lathe cutter is not. That is why I will not part with my 18" 4 ton shaper. It makes flat surfaces. My humble opinion. Steve "Bruno" wrote in message ... Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Flycutter |
#6
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How to mill a flat surface
In article ,
Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...ise/Repainting -Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. Joe Gwinn |
#7
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How to mill a flat surface
On 2008-05-29, Joseph Gwinn wrote:
In article , Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...ise/Repainting -Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. Joe, I agree, I think that 5-10 minutes with sandpaper will get me covered. i -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#8
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How to mill a flat surface
How about a belt sander?
"Ignoramus9931" wrote in message ... On 2008-05-29, Joseph Gwinn wrote: In article , Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...ise/Repainting -Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. Joe, I agree, I think that 5-10 minutes with sandpaper will get me covered. i -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#9
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How to mill a flat surface
On Thu, 29 May 2008 06:59:49 -0500, Ignoramus9931
wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. It's hard to tell from a photo, but it looks to me as though your endmill is not sharp. -- Ned Simmons |
#10
Posted to rec.crafts.metalworking
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How to mill a flat surface
Joseph Gwinn wrote:
Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. Joe Gwinn I was waiting to see if someone came up with this. Or as I thought first off was "draw filing" . ...lew... |
#11
Posted to rec.crafts.metalworking
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How to mill a flat surface
In article ,
Joseph Gwinn wrote: Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. I don't know about that - my friend the armorer (plate, various sorts, Italian 15th century being his favorite, as I recall) always kept the anvil faces and hammer faces polished to a mirror shine. Not overly difficult to maintain when in regular use. Takes a good deal of work to get an abused rusty farm anvil up to that standard in the first place, however. Mine look like crap, comparatively, but that's mostly because they are sitting around in one of the interminable phases of not getting much work done while trying to get the shop ready to use. The older one did get a full workover when I got it, and I oil them to slow the surface rust while they wait for me to get things set up. -- Cats, coffee, chocolate...vices to live by |
#12
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How to mill a flat surface
What the others said about tramming, flycutter instead of end mill, hand
sanding the finish, etc. Also you should have this: http://www.harborfreight.com/cpi/cta...emnumber=93981 In a corner somewhere. Very useful for surface finishing on a WIDE range of stuff. JR Dweller in the cellar Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth If you're not the lead dog, the view never changes Doubt yourself, and the real world will eat you alive The world doesn't revolve around you, it revolves around me No skeletons in the closet; just decomposing corpses -------------------------------------------------------------- Dependence is Vulnerability: -------------------------------------------------------------- "Open the Pod Bay Doors please, Hal" "I'm sorry, Dave, I'm afraid I can't do that.." |
#13
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How to mill a flat surface
On 2008-05-29, JR North wrote:
What the others said about tramming, flycutter instead of end mill, hand sanding the finish, etc. Also you should have this: http://www.harborfreight.com/cpi/cta...emnumber=93981 I kind of like this sander a lot because it is so small. I have a hand held electric sander also. All good ideas. In a few days I will be similarly refurbishing a 4" vise (this one was a 5"). i In a corner somewhere. Very useful for surface finishing on a WIDE range of stuff. JR Dweller in the cellar Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#14
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How to mill a flat surface
"Ignoramus9931" wrote in message ... On 2008-05-29, JR North wrote: What the others said about tramming, flycutter instead of end mill, hand sanding the finish, etc. Also you should have this: http://www.harborfreight.com/cpi/cta...emnumber=93981 I kind of like this sander a lot because it is so small. I have a hand held electric sander also. All good ideas. In a few days I will be similarly refurbishing a 4" vise (this one was a 5"). i In a corner somewhere. Very useful for surface finishing on a WIDE range of stuff. JR Dweller in the cellar Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ It doesn't appear that you're looking for a mechanically flat surface here, only one that *looks* flat, right? Because getting a truly flat surface with hand sanding or files is a specialty that requires some understanding. And getting a truly flat surface with a belt sander is nearly impossible. Look at the sole of a new Stanley plane, and take a good straightedge with you to check it, and you'll see that they're a swaybacked mess. They're "abrasive-belt machined." Right. g But filing or hand-sanding can do a credible job if you use your head. For the initial flattening on my chunk of railroad track, which I try to keep flat for whacking on odds and ends with a hammer, I used an angle-head grinder and a straight edge. Then I draw-filed it. Then I struck it (filed straight along the length.) Then I cross-filed it, then struck it diagonally. All of this filing took less than five minutes. It's pretty darned flat. This is the same method I have used in the past for flattening cylinder heads on lawnmowers, BTW. And don't tell anyone, but I also used it to flatten the manifold faces on the aluminum heads of a Mitsubishi V6 motor. I took them to a machine shop and they said it was better than anything they could do with machine tools. g Once you get it flat, you can use abrasive sanding to make it smooth. But that's smooth, not flat. You probably know all this but just in case... -- Ed Huntress |
#15
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How to mill a flat surface
....
grinder and a straight edge. Then I draw-filed it. Then I struck it (filed straight along the length.) Then I cross-filed it, then struck it diagonally. All of this filing took less than five minutes. It's pretty darned flat. This is the same method I have used in the past for flattening cylinder heads on lawnmowers, BTW. And don't tell anyone, but I also used it to I didn't reply here earlier cause I knew iggy wanted smooth not flat. I'm curious. When I need both, I've used your procedure, only with stones and kerosene. It does take a lot of time. Good idea or am I wasting time? Karl |
#16
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How to mill a flat surface
On Thu, 29 May 2008 06:59:49 -0500, with neither quill nor qualm,
Ignoramus9931 quickly quoth: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. 3 minutes with a file, and a minute with a 120 grit DA sander, maybe? -- I wish the Department of Homeland Security knew what ol' Unca Doug did, instinctively, so many years ago: There is no security on this earth, there is only opportunity. -- General Douglas MacArthur |
#17
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How to mill a flat surface
To me it looks like the vise might have been slightly unstable on the
swivel base when you milled it. I have cleaned up import milling vises, my anvil, and a PYH end mill sharpener like this: If the top surface wasn't milled, level it with wedges and take a light pass to remove high spots and see how it cuts. Shiny spots are harder and may be high afterwards. Flip it over and block it up on the just-milled surface. Cut enough off the base to see fresh metal all around. Turn it back upright, locate clamps over the cuts on the bottom so the casting doesn't warp, fly-cut the top. I take no more than 0.005" per pass and often 0.001" for the last one, after stoning the bit. I tried this on an RF-30 mill-drill once without success, the vertical feed was too sloppy. I had to take the vise home to mill it. Since I have a surface grinder I next grind the bottom side until the wheel cuts at least most of the area, turn it upright and grind the top to taste. Previously I filed most of the tool marks off and then finished with SiC paper wrapped around a file or a piece of scrap tooling plate. You can file in the middle of a surface without rounding the edges with a file that curved during hardening, which is common for the cheap ones. I would clean up the swivel base of your beautiful red vise separately on a faceplate in a lathe. Jim Wilkins |
#18
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How to mill a flat surface
On 2008-05-29, Jim Wilkins wrote:
To me it looks like the vise might have been slightly unstable on the swivel base when you milled it. No, I removed the vise from the swivel base and bolted it directly to the milling table ways. I have cleaned up import milling vises, my anvil, and a PYH end mill sharpener like this: If the top surface wasn't milled, level it with wedges and take a light pass to remove high spots and see how it cuts. Shiny spots are harder and may be high afterwards. Flip it over and block it up on the just-milled surface. Cut enough off the base to see fresh metal all around. Turn it back upright, locate clamps over the cuts on the bottom so the casting doesn't warp, fly-cut the top. I take no more than 0.005" per pass and often 0.001" for the last one, after stoning the bit. I tried this on an RF-30 mill-drill once without success, the vertical feed was too sloppy. I had to take the vise home to mill it. Since I have a surface grinder I next grind the bottom side until the wheel cuts at least most of the area, turn it upright and grind the top to taste. Previously I filed most of the tool marks off and then finished with SiC paper wrapped around a file or a piece of scrap tooling plate. You can file in the middle of a surface without rounding the edges with a file that curved during hardening, which is common for the cheap ones. I would clean up the swivel base of your beautiful red vise separately on a faceplate in a lathe. Don't have one... And most sadly, do not have space for one... I removed exactly 1mm from the anvil surface, and that was too much, should have removed 0.5mm. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#19
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How to mill a flat surface
"Karl Townsend" wrote in message ews.com... ... grinder and a straight edge. Then I draw-filed it. Then I struck it (filed straight along the length.) Then I cross-filed it, then struck it diagonally. All of this filing took less than five minutes. It's pretty darned flat. This is the same method I have used in the past for flattening cylinder heads on lawnmowers, BTW. And don't tell anyone, but I also used it to I didn't reply here earlier cause I knew iggy wanted smooth not flat. I'm curious. When I need both, I've used your procedure, only with stones and kerosene. It does take a lot of time. Good idea or am I wasting time? Karl I guess it will work, but if the material can be filed, it's a whole lot quicker. If the material can't be filed, and if the part is small enough, I've sometimes "lapped" it on an old marble table top with a piece of emery cloth taped or glued (with rubber cement) to the marble. This is a method sometimes recommended for fixing Stanley planes that are new and which therefore suck. I have a good collection of files and I save my best ones for jobs like this. If the part is work-hardened steel or c.i. and kind of hard, striking with a file can be iffy. If the file skates you'll wreck it. The file has to bite. But my piece of RR track was no problem, despite lots of work-hardening from years of use. -- Ed Huntress |
#20
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How to mill a flat surface
On May 29, 9:36 am, Joseph Gwinn wrote:
In article , Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...on-500S-Vise/R... -Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Wrap a piece of coarse-grit wet-dry sandpaper around a flat piece of metal, and wet sand the surface flat by hand. Change sandpaper often. If the mill has done its work well, it will not take very long before all miil marks are gone. If desired, use finer grades of sandpaper to eliminate the frosted surface. This can be carried to any extreme, including mirror surfaces, which seems extreme for an anvil surface. Unless you are a jeweler. Joe Gwinn As a cheat you can 'wet sand' with normal sandpaper and some type of light oil- WD40 works well for this. Dave |
#21
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How to mill a flat surface
On May 29, 1:00*pm, "Karl Townsend"
wrote: ... grinder and a straight edge. Then I draw-filed it. Then I struck it (filed straight along the length.) Then I cross-filed it, then struck it diagonally. All of this filing took less than five minutes. It's pretty darned flat. This is the same method I have used in the past for flattening cylinder heads on lawnmowers, BTW. And don't tell anyone, but I also used it to I fixed an air compressor that blew gaskets by filing the warped block flat after pouring wax onto the pistons to catch the debris. It was too tall for my surface grinder. I ground the head flat and used it with bluing to see where to file the block. That problem is solved but it still has others... I didn't reply here earlier cause I knew iggy wanted smooth not flat. I'm curious. When I need both, I've used your procedure, only with stones and kerosene. It does take a lot of time. Good idea or am I wasting time? Karl I have a new coarse/fine stone that's only used to take the burrs off machine tool tables. The one I sharpen knives and plane blades on isn't flat enough any more. SiC paper on a flat block works quite well if you can find the flat block. I've used 1-2-3 blocks and a ground angle plate salvaged from an old rusty fixture. The area between the rust pits is still very flat. In general you can work to whatever accuracy or flatness you can measure, because after measuring you know where to correct. I fitted loose scope bases to another shooter's rifle at the range by smoking the bases with a lighter and scraping the contact marks down with pieces of broken glass. He went from off the target frame to about a 4" group. Jim Wilkins |
#22
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How to mill a flat surface
Bruno wrote:
Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. Flycutter With the head meticulously aligned parallel. |
#23
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How to mill a flat surface
On May 29, 7:59*am, Ignoramus9931
wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...on-500S-Vise/R... The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- * *Due to extreme spam originating from Google Groups, and their inattention * * * to spammers, I and many others block all articles originating * * * *from Google Groups. If you want your postings to be seen by * * * * *more readers you will need to find a different means of * * * * * * * * * * * *posting on Usenet. * * * * * * * * * *http://improve-usenet.org/ End mill - solid carbide or inserts? It makes a difference. The solid carbide mills have a decent rake angle, and can be quite sharp. Usually, the inserts aren't. Was the surface ground to begin with, or as-cast? If as-cast, you may have not been getting under the scale and hard surface. Might also try upping the RPM. John Martin |
#24
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How to mill a flat surface
Bruno wrote:
Flycutter That's so the whole surface can be milled at one pass, I take it? Jordan |
#25
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How to mill a flat surface
On May 29, 6:19*pm, Jordan wrote:
Bruno wrote: Flycutter That's so the whole surface can be milled at one pass, I take it? Jordan I don't quite know why, but even a small flycutter on a large surface cuts smoother than end mills. |
#26
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How to mill a flat surface
In article ,
"peter divergilio" wrote: How about a belt sander? Far too hard to control, and will likely make such a small surface humped. "Ignoramus9931" wrote in message ... On 2008-05-29, Joseph Gwinn wrote: In article , Ignoramus9931 wrote: Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. [snip] |
#27
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How to mill a flat surface
"Ignoramus9931" wrote in message ... I kind of like this sander a lot because it is so small. I have a hand held electric sander also. All good ideas. I have had to flatten a few 2"-5" pieces of mild steel recently. FWIW, here is what works for me: 1) Sanding attachment in angle grinder - 40, 80, 120, 220 grit till I am happy it is flat 2) Clean up with *palm* sander 60 (sometimes skip), 120, 220, 320, 400 grit. 3) I love my 4x36" belt sander but for this job it did not work as well as the above. -- Michael Koblic, Campbell River, BC |
#28
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How to mill a flat surface
Here is what you do.
Get ahold of a big ass hammer and wail the tar out of it for half an hour. It will look used, useful, and you will never know the difference. Shoot for a heart rate of 80 or so. "Ignoramus9931" wrote in message ... Related to my yesterday's vise refurbishing project, where I milled a little thin layer off the anvil to make it look smooth. I used a 5/8" carbide endmill. I made multiple passes, each time removing a "strip" approximately 1/2" wide. While the result is perfectly acceptable for a vise anvil, it was nothing to brag about as far as finish quality is concerned. Here's one revealing pictu http://igor.chudov.com/projects/misc...-Vise/Repainti ng-Of-Wilton-500S-Vise-2182.jpg The ridges you see, are visually exaggerated by the fact that some passes fere from left to right and some were from right to left. They look bigger than they are because of this. In reality they are not really that high. So. What would you do, to achieve a decent looking flat finish, without a surface grinder or anything of the sort. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#29
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How to mill a flat surface
Take lots of little cuts instead of feeding the full width of the
cutter |
#30
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How to mill a flat surface
On Jun 1, 10:04*am, Dan@ (Dan H) wrote:
Take lots of little cuts instead of feeding the full width of the cutter What kind of milling machine do you have? My experience with a smallish Clausing mill has been that a flycutter or shell mill taking a wide but very shallow cut gives the best finish, as long as the non-moving table and quill clamps are tight. |
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