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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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Cut metal without stretching?
I want to cut some thin stainless that I have in my shop to create so door
sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? |
#2
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Cut metal without stretching?
For thin material, an abrasive cut off process with relatively slow feed
is apt to create less distortion. This would work with complex shapes hard to cut with other tools. However, if the stainless that you are cutting is flat, power shears and perhaps hand shears will not create much distortion. Richard HotRod wrote: I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? -- http://www.fergusonsculpture.com Sculptures in copper and other metals |
#3
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Cut metal without stretching?
"HotRod" wrote in message ... I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. One way we used to cut thin metal for electronic prototypes was to clamp it strongly between two pieces of 3/4" plywood, then cut at high speed with a lot-o-teeth carbide blade in a table saw. LLoyd |
#4
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Cut metal without stretching?
Take it to a sheet metal shop and have them sheer it for you. Takes
only a few minutes and shouldn't cost more than a couple of bucks. 73 Gary N9ZSV |
#5
Posted to rec.crafts.metalworking
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Cut metal without stretching?
"HotRod" wrote in message ... I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? Any grinding process will introduce considerable heat, so that's not a great choice. Shearing the material will leave a rolled edge, often curling the piece in question, so that's not a good choice. You mentioned a band saw. If you use a base piece that has a slot the same size as the blade, and use a very fine toothed blade in the saw, you can usually saw parts in thin stainless without distorting them. The key is to use the narrow slot support, and not push hard, for stainless is notorious for stripping teeth from the blade. If the blade starts shucking teeth, you have nothing to lose, so you can usually run the speed up considerably and get the job finished, although it will continue to shuck teeth. Time your feed rate in keeping with the missing teeth to minimize losing more---- To avoid scratching the material on the bottom side, from sliding in chips, tape some heavy paper on the bottom side of the part, while you're sawing the profile, or a couple layers of masking tape. Or, keep the bottom side the bottom, so when they're installed the scratches won't show. It's hard to avoid scratching the bottom face when using a band saw. Harold |
#6
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Cut metal without stretching?
I already tried sending the metal to shop to have it sheared and it ended up
deforming the sheared side enough that it rolled on the edge a bit. I'll try the bandsaw idea and see how that works. "HotRod" wrote in message ... I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? |
#7
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Cut metal without stretching?
On Thu, 26 Jan 2006 11:03:38 -0500, "HotRod"
wrote: I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? You do know that you can get stainless with either a plastic film or a paper protective coating applied. Allows you to do quite a bit of work without marring the finish surface, although it won't stop shearing deformation (warping). Makes it a bit easier to hold too. You could probably do the same thing with un-coated on your own using something like MacTac, but I have never tried it. |
#8
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Cut metal without stretching?
I have tosn of 4' square sheets of stainless, galv. aluminum and other stuff
that I got for free. I want to start workign with it instead of trying to buy somethingelse. BUT thanks. I'm going to give the bandsaw a try this weekend. "Brian Lawson" wrote in message ... On Thu, 26 Jan 2006 11:03:38 -0500, "HotRod" wrote: I want to cut some thin stainless that I have in my shop to create so door sill protectors for my car. BUT how can I cut it without leaving tool marks or stretching the material? My chocies. 1) Band Saw 2) Grinder 3) Die Cutter 4) Hand Held metal shears 5)??? You do know that you can get stainless with either a plastic film or a paper protective coating applied. Allows you to do quite a bit of work without marring the finish surface, although it won't stop shearing deformation (warping). Makes it a bit easier to hold too. You could probably do the same thing with un-coated on your own using something like MacTac, but I have never tried it. |
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