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"How To" advice please

Skippy59

Plastic
Joined
Mar 22, 2016
Hi all, I'm looking to get someone here on this forum (preferably in USA) to machine 20 or 36 pieces (quantity will be determined by price) of the attached part out of S7 tool steel and it seems that there's no RFQ section here. After machining I plan to get the sliding surfaces ground/honed then DLC coated. I don't have any experience with getting jobs precision ground so what I need to know is can the small radius (green) on the underside be ground due to how that surface comes back and meets the main body at the yellow surface which is an R8mm and if so how? They manage it okay on OEM products but they've got millions to spend on specialist tooling. The way it is at present would either need a 16mm grinding wheel OR it gets ground in the other direction with the flat of the wheel against the surface OR should I redesign the part. I purposely didn't include any chamfers or filleting in the drawing at this stage. Thanks in advance for your advice.
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I contract out enough machining work each week to have a fair idea.
 
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Sensible questions asked in a humble way shouldn't require one to have a thick skin.
 
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Machine dies and forge the parts, clamp them, mill and drill on same setup for angles. Next heat treatment and finally the grinding-polishing. If you machine from solid, static and dynamic performance won’t meet with original. As CarbideBob says, it’s brutal.
 
Maybe it's time to remove my post. The reason I posted here was because I was planning on getting this job done in USA. Why? (1) Good availability of S7 and in fact it's cheap there (2) easy to get DLC coating done there (3) American labour costs are cheaper than Australia (4) many specialist companies who know their stuff, and the list goes on.
 
Why the USA? Send it to me, PORTUGAL.
No way i let it be more expensive than anywhere in the rest of the world at same quality rate. Send PM if you get interested.
 








 
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