Identification of Heat Treated Parts Question
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Posted by: shiva2207 ®

05/29/2006, 05:35:52

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we are heat treating some of our components in a big lot(500 Nos)
Can we differentiate heat treated part from non heat treated part (If both mixed together) easily? (i.e Visually or simple testing ,other than hardness testing, microstructure testing)







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Re: Identification of Heat Treated Parts
Re: Identification of Heat Treated Parts -- shiva2207 Post Reply Top of thread Forum
Posted by: kang ®

06/13/2006, 12:51:24

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the heat treated parts will have a slightly different colour than the non heat treated part and will be on the darker side. and if a particular zone of a oart is heat treated the u will be able to visualise a change in the colour zone and it will bw distinctly viisible







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Re: Identification of Heat Treated Parts
Re: Identification of Heat Treated Parts -- shiva2207 Post Reply Top of thread Forum
Posted by: randykimball ®
Barney
06/01/2006, 19:56:28

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If there is an area that you can scratch with a scribe without causing the part to fail quality control or start a fracture crack, you can tell a HT part from a non-HT part in a heart beat with a scratchtest.

Many parts will change the resonance pitch after being heat treated. Lay one of each on a soft surface or hang them from a loop of string and tap them with a small hard plastic mallet. If they sound very different you are in business. Be sure to strike them and hang them from the same locations each time.





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Modified by randykimball at Thu, Jun 01, 2006, 19:57:27


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