Surface finish - forum communication

Started 1 week ago (2009-12-15 23:43:00) by tsaytroniks

Can somebody please help me choose a PCB surface finish preparation for a design layout with a 4 mil trace and 3 mil spacing?

Source: Electronics Forum

Forum: PCB (Printed Circuit Board) Design

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RE: Surface Finish Preparation

Started 1 week ago (2009-12-16 01:42:00) by CWB

overcoating the board with a clear/transparent colored finish is a possibility . it also provides some level of protection .

Source: Electronics Forum

Forum: PCB (Printed Circuit Board) Design

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Inner Diameter Surface Finish Ra Value vs. Surface Finish Graph Output

Started 1 month, 1 week ago (2009-11-16 00:22:00) by p v k Raju

Hi This is PVK Raju and I would like to ask one clarification. Recently We have Checked one part Inner dia surface finish on that output results Ra is 0.60microns as against 0.80 microns. But surface finish graph output results most of the values are 1.0 to 1.5 microns but average or Ra value is 0.60microns only. Here My question is (our customer asking) graph output results ...

Source: ISO 9001, TS 16949, Six Sigma and related Quality ...

Forum: Manufacturing and Related Processes

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ASTM G48A - surface finish

Started 1 month, 3 weeks ago (2009-10-27 09:12:00) by bruv

I have identical G48 Method A tests carried out by two different test labs. Test criteria were 24hr duration at 50C, no pitting allowed, and a maximum weight loss of 4g/sq.m. Test pieces were pickled and passivated before testing. The material in question is a nickel based casting alloy, in the solution annealed condition. Test lab A reported a final weight loss of 4.2g/sq.m, and found pitting...

Source: Eng-Tips Forums

Forum: Corrosion engineering

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Surface finish waviness

Started 2 months ago (2009-10-23 04:04:00) by omar1122

How do you traslate this ? Surface finish waviness

Source: WordReference - Language Forums

Forum: Specialized Terminology

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bad surface finish

Started 2 months, 1 week ago (2009-10-15 11:37:00) by tunitime

I am trying to drill and/or bore a 20.58 hole radially on a live tooling lathe into 4140 prehard 32-40 Rc. Its a tight size tolerance of ±0.015mm with a micro of 1.6Ra. So far drill , reaming, or single point boring has failed. Anyone have a solution for this Micro other than second operation grinding? This is a high production job running from bar stock and the radial hole is through the part...

Source: CNCzone.com-The Ultimate Machinist Community

Forum: General Machining Discussion

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Milling wax, issues with surface finish..

Started 2 months, 1 week ago (2009-10-11 17:38:00) by srmaietta

Hey, I know this is the software forum but I figured there are more wax cutters here than anywhere else. I use a 15degree, .005 carbide "profiler" to cut my wax. 30krpm spindle. .002 stepover. I run at 22 ipm. cuts great, no melting etc.. But my surface finish is pretty "grainy".. generally rough.. I use a toothbrush and some mild soap and water to clean up the loose fuzz, but there is...

Source: CNCzone.com-The Ultimate Machinist Community

Forum: General Jewelry Design Software

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Surface Finish Standards

Started 2 months, 2 weeks ago (2009-10-09 12:05:00) by kjerick

Hi, I am looking for an industry standard for plastic part surface finishes, such as ASTM. Not having an extensive plastics background I was hoping you guys could help point me in the right direction. I appreciate any information that can be provided Thanks, Kyle

Source: www.plastics.com

Forum: Testing and Quality

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Surface finish

Started 2 months, 2 weeks ago (2009-10-09 08:23:00) by mert

Any particular reason why the mid section castings (the bit you can see above the gearcase and the split plastic cowling) on V4's have a really porous looking finish to them?

Source: www.etecownersgroup.com

Forum: E-TEC Discussions

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RE: love the legs on the first but not loving the surface finish. Don't care for the second...

Started 1 month ago (2009-11-20 11:25:00) by tealight

love the legs on the first but not loving the surface finish. Don't care for the second...

Source: MakeupAlley Message Boards

Forum: Home and Garden Board

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RE: need help with creating surface finish contour

Started 1 month ago (2009-11-18 21:40:00) by gorby

I select all surfaces as my drive surfaces and then bieng asked for to select boundaries surface what do I select to complete surface finish contuor,i dont no how to use solids Im using only surfaces when creating toolpaths,please give some more info on it or advise,Thank You

Source: CNCzone.com-The Ultimate Machinist Community

Forum: Mastercam

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