Hardness test for small parts , like bolts, for the round parts
Hardness test for small parts , like bolts, for the round parts
(OP)
Hi All
I was wondering which test is better and if there are appropriate devices to measure the hardness on the bolts cylindrical part, since with the brinel test device that we have it's not possible, I was thinking of HV , but I am not sure, I wanted to sample the hardness on different parts, from flat to rounded , but the dimensions are sometimes small , at the order of 10 mm diameter
what do you suggest me
Thank you very much
I was wondering which test is better and if there are appropriate devices to measure the hardness on the bolts cylindrical part, since with the brinel test device that we have it's not possible, I was thinking of HV , but I am not sure, I wanted to sample the hardness on different parts, from flat to rounded , but the dimensions are sometimes small , at the order of 10 mm diameter
what do you suggest me
Thank you very much





RE: Hardness test for small parts , like bolts, for the round parts
The larger the part, and the smaller the indention then the less trouble it causes.
But at the same time small indentions are more sensitive to surface finish and variations in properties.
Superficial Rockwell scales may be a good compromise.
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P.E. Metallurgy, Plymouth Tube
RE: Hardness test for small parts , like bolts, for the round parts
RE: Hardness test for small parts , like bolts, for the round parts
http://www.kutlultd.com.tr/files/downloads/pdf/har...
RE: Hardness test for small parts , like bolts, for the round parts
RE: Hardness test for small parts , like bolts, for the round parts
I think this one can easily capture also on the curvature