Hi desertfox,
I appreciate your response. I checked the link but could not find detailed that I am looking for.
I am looking for the thread profile and dimension info. Does anyone think I might find this info in Machinery's Handbook?
Thanks,
unp
Dear Forum Members,
* We have Al die casting parts with "4 11/16 - 8 UNJ-2A" external threads. We have "4 11/16 - 8 UNS-2A" go / nogo gages and want to know if these gages would give us correct results.
* I found on the web that a UNS nut won't fit on a UNJ external thread (due to external...
Thanks for all the responses that I received. From all these responses, I understood that it is not required to use NIST blocks for routine verifications; I will keep using my old block. unp1
Recently I got my Rockwell hardness testing machine calibrated. The guy from the calibration service told me that ASTM E18 is a new standard for this test and I will have to buy new B-scale tungsten balls and appropriate test block for the future use. Could anyone please tell me what exactly do...
Thanks for all your responses! Below is more info on this topic.
This is a Cold Rolled Steel for a stamping part. The material spec on the drawing is,
“.0897 +/- .002 thick C.R.S., 1/4 hard.” I don’t have much info (material properties) about the material that our Chinese vendor wants to use...
We have some parts that require 1/4 Hard CRS. We are currently developing these parts in China. Our Chinese vendor is asking us if he can use HEAT TREATED CRS that has the same hardness as of 1/4 HARD CRS.
Is there any difference between these two? Thanks.
unclesyd,
Thanks for your help. I got the basic info that I was looking for. I am still willing to receive more info if someone can provide me. Thanks, unp1
Material for a screw machine part is mentioned as “RAWSTOCK: STRESSPROOF” on the drawing. Does anyone know what this material is? What are the chemical and mechanical properties? Thanks.
I have a new part which has 96 DP Straight Knurl. The diameter before knurl is .187 +/- .005 and diameter after knurling is .200-.203. To calculate the # of knurls required which diameter shell I consider, before knurl or after knurl diameter? Thanks.
Hi plasgears,
Thanks for your post. But, the problem is, we are just a supplier and don't have any capacity of doing rework in-house. We get the products manufactured in Asia and deliver to our customers in JIT basis. In this case, our customer is facing the problem during assembly.
We have rejected Aluminum screws. The screws were waxed for lubrication, but the wax was too much dry and caused problem in the assembly. I am looking for a reworking source. Could any one please provide me reworking source info for this type of work? This is the first time we have such a...
