Home |
Search |
Today's Posts |
|
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. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
Great stuff, Timesaver lapping abrasive. "Guaranteed not to continue
to cut". This week I had two instances to use it. The first was when I tried to thread new nuts onto the shaft of an old (probably 1940s vintage) Baldor grinder. The new nuts would not fit. I measured the pitch diameter of the 1/2-13 threads and they were oversize. The nuts that came with the ancient grinder were larger than normal 1/2-13 across the flats. .937 while normal 1/2-13 nuts are .750 across the flats. The nut threads were also quite oversized because the fit was quite loose on the grinder shaft. So I mixed some of the Timesaver stuff with a little oil and lapped the new nuts to the threads. Only took about 15 minutes to get a nice fit. Then today working on a DoAll vertical bandsaw that had been converted from a band filer I ran into a problem. The bar that holds the blade guides and slides up and down would not slide easily. The guide for it, when bolted tight to the saw, would warp slightly. So I used the same stuff I mixed earlier and lapped the pieces together. Now the bar slides easily and smoothly without being sloppy. I love the Timesaver Lapping abrasives. They don't imbed, break down fast into a finer abrasive, and eventually stop cutting. Good stuff Maynard. Eric |
#2
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
|
#3
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Fri, 10 Feb 2017 19:47:14 -0800, Paul Drahn
wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? Paul Greetings Paul, It's made by Micro Surface Corp. in San Jose, CA. I bought the 8ea. 3 oz. can kit from Newman Tools. Here's a link: http://www.shopnewmantools.com/colle...ucts/test-kits The test kit is $208.00, which seems high but I bought my kit over a decade ago, have used it many times and still have most of the stuff left. It doesn't take much to lap stuff in and it has saved me tons of money over the years because it gets used in my business. Eric |
#4
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Fri, 10 Feb 2017 19:47:14 -0800
Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk -- Leon Fisk Grand Rapids MI/Zone 5b Remove no.spam for email |
#5
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Friday, February 10, 2017 at 10:47:22 PM UTC-5, Paul Drahn wrote:
On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? Paul $9.00 for a 3-oz. jar from Micro Surface. Here's the Yellow grade. The others should be selectable from the choices on the webpage. https://www.ws2coating.com/yellow-la...-and-aluminum/ IIRC, it's mostly silica or glass, at least for the hard (green) version made for ferrous metals. If you remember engine valve lapping compounds from 50 or more years ago, they were ground glass for the same reason. It resists embedding in cast iron valve seats. -- Ed Huntress |
#6
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Sat, 11 Feb 2017 14:19:04 -0400, Leon Fisk
wrote: On Fri, 10 Feb 2017 19:47:14 -0800 Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk Or try http://tinyurl.com/j6aurtu $3.66/10g, because who needs a full pound of lapping powder? -- Give me the luxuries of life. I can live without the necessities. --anon |
#7
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
"Larry Jaques" wrote in message ... On Sat, 11 Feb 2017 14:19:04 -0400, Leon Fisk wrote: On Fri, 10 Feb 2017 19:47:14 -0800 Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk Or try http://tinyurl.com/j6aurtu $3.66/10g, because who needs a full pound of lapping powder? -- Give me the luxuries of life. I can live without the necessities. --anon I've often wondered how this lapping powder would work on say, a '66 GM 225 V-6 crankshaft. Use it to fine tune the clearances all at once. Solvent clean ofterward. Anyone try this? ;) phil k. |
#8
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
"Phil Kangas" wrote in message news "Larry Jaques" wrote in message ... On Sat, 11 Feb 2017 14:19:04 -0400, Leon Fisk wrote: On Fri, 10 Feb 2017 19:47:14 -0800 Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk Or try http://tinyurl.com/j6aurtu $3.66/10g, because who needs a full pound of lapping powder? -- Give me the luxuries of life. I can live without the necessities. --anon I've often wondered how this lapping powder would work on say, a '66 GM 225 V-6 crankshaft. Use it to fine tune the clearances all at once. Solvent clean ofterward. Anyone try this? ;) phil k. Wouldn't the abrasive just get embedded in the insert? That's not good... sorry i posted the question. phil k. |
#9
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Sun, 12 Feb 2017 15:55:43 -0500, "Phil Kangas"
wrote: "Phil Kangas" wrote in message news "Larry Jaques" wrote in message ... On Sat, 11 Feb 2017 14:19:04 -0400, Leon Fisk wrote: On Fri, 10 Feb 2017 19:47:14 -0800 Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk Or try http://tinyurl.com/j6aurtu $3.66/10g, because who needs a full pound of lapping powder? -- Give me the luxuries of life. I can live without the necessities. --anon I've often wondered how this lapping powder would work on say, a '66 GM 225 V-6 crankshaft. Use it to fine tune the clearances all at once. Solvent clean ofterward. Anyone try this? ;) phil k. Wouldn't the abrasive just get embedded in the insert? That's not good... sorry i posted the question. phil k. Greetings Phil, The yellow label stuff is for lapping soft metals in just the kind of application you describe. I have lapped in many babbit bearings using Timsaver lapping compound. Mix the stuff with oil according to the instructions and apply through oil hole if the bearing has one or apply to bearing shells and assemble the bearing. The abrasive will not embed into the soft metal but will instead lap it. Conventional lapping compound, like the Clover stuff, will embed in the softer metal and lap the harder metal. Timesaver works opposite in that it will not embed and will lap the softer metal. Eric |
#10
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
wrote in message On Sun, 12 Feb 2017 15:55:43 -0500, "Phil Kangas" wrote: I've often wondered how this lapping powder would work on say, a '66 GM 225 V-6 crankshaft. Use it to fine tune the clearances all at once. Solvent clean ofterward. Anyone try this? ;) phil k. Wouldn't the abrasive just get embedded in the insert? That's not good... sorry i posted the question. phil k. Greetings Phil, The yellow label stuff is for lapping soft metals in just the kind of application you describe. I have lapped in many babbit bearings using Timsaver lapping compound. Mix the stuff with oil according to the instructions and apply through oil hole if the bearing has one or apply to bearing shells and assemble the bearing. The abrasive will not embed into the soft metal but will instead lap it. Conventional lapping compound, like the Clover stuff, will embed in the softer metal and lap the harder metal. Timesaver works opposite in that it will not embed and will lap the softer metal. Eric Ok, that's good to know. Thanks for the input, eih? ;) |
#12
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Sunday, February 12, 2017 at 8:44:00 PM UTC-5, wrote:
On Sat, 11 Feb 2017 10:38:37 -0800 (PST), wrote: On Friday, February 10, 2017 at 10:47:22 PM UTC-5, Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? Paul $9.00 for a 3-oz. jar from Micro Surface. Here's the Yellow grade. The others should be selectable from the choices on the webpage. https://www.ws2coating.com/yellow-la...-and-aluminum/ IIRC, it's mostly silica or glass, at least for the hard (green) version made for ferrous metals. If you remember engine valve lapping compounds from 50 or more years ago, they were ground glass for the same reason. It resists embedding in cast iron valve seats. Greetings Ed, When I bought my 8 can sample kit years ago I bought it directly from Micro Surface but had forgotten their name. When I looked for it online the other day Newman Tool was the first link. I had no idea they would mark up the same kit more than 200% over what Micro Surface charges. I'm glad you looked more and found that much cheaper price. The fact that it doesn't embed and laps the softer metal is quite useful in certain situations and I'm sure there are folks reading this group that could use it, especially at the much cheaper price you linked to. Thanks, Eric I'm glad you brought it up, Eric. I've heard of it and I was curious, but I never checked it out before. I remember reading an article about building benchrest rifles, and the author recommended it for lapping-in the lugs on a bolt action. That was the hard version, made for lapping steel. From one of the MSDSes online, I see that the steel version also contains garnet. That's another silicate, usually aluminum silicate, which is a good abrasive but it has two properties that sound right in line with the idea of not embedding: it fractures easily, and it doesn't cleave into strong crystal shapes. It just keeps breaking up. So maybe I'll find a use for it. I used to do a lot of lapping, when I spent a lot more time in the shop. I avoid using a toolpost grinder when I can, because I don't want that grit on my lathe bed. -- Ed Huntress |
#13
Posted to rec.crafts.metalworking
|
|||
|
|||
Timesaver lapping abrasive
On Sun, 12 Feb 2017 14:53:02 -0500, "Phil Kangas"
wrote: "Larry Jaques" wrote in message ... On Sat, 11 Feb 2017 14:19:04 -0400, Leon Fisk wrote: On Fri, 10 Feb 2017 19:47:14 -0800 Paul Drahn wrote: On 2/10/2017 6:49 PM, wrote: Timesaver lapping abrasive I see it for $50 per pound on Ebay. Where do you get it? It looks like McMaster carries it too: 1 lb. 5lb. Available Grits Each Each For Soft Metals 80, 120, 220, 320 4781A4 $26.79 4781A5 $118.10 For Hard Metals 40, 80, 220, 320 4781A6 $26.79 4781A7 $118.10 https://www.mcmaster.com/#polishing-compounds/=16b6pqk Or try http://tinyurl.com/j6aurtu $3.66/10g, because who needs a full pound of lapping powder? I've often wondered how this lapping powder would work on say, a '66 GM 225 V-6 crankshaft. Use it to fine tune the clearances all at once. Solvent clean ofterward. Anyone try this? ;) phil k. We have 48 days before you pull that one, Phil. But, by all means, try that one on your own engine. -- Give me the luxuries of life. I can live without the necessities. --anon |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
lapping fluid | Woodworking | |||
Rat lapping | Metalworking | |||
Lapping | Metalworking | |||
Has anyone seen this "affordable" Timesaver in Action? | Woodworking | |||
mini timesaver sander? | Metalworking |