|
|
|
|
Joined: May 1999
Posts: 199
Member
|
OP
Member
Joined: May 1999
Posts: 199 |
Does anyone know of a supplier for Case Hardened Steel Peening Balls?
Here is some information provide by my QA Manager at our Georgia faciliy.
Peening Technologies has been unable to identify a vendor for 1/8” burnishing ball media meeting the requirements of AMS 2431/5. The primary areas of discrepancy lie in the hardness requirement of 57-62 HRc, most manufacturers are heat treating their product to a 60 HRc minimum which would give a hardness range of roughly 60-65 HRc. The other primary deficiency is in the area of case hardness where the requirement is .025-.030” (min.-max.). Typically what I am finding is that ball manufacturers are case hardening to a depth of .025-.040” and in some cases may exceed this maximum as well. I did not fully investigate the case hardness testing methods required by AMS for this product but do believe that this requirement also in not being met as this is not a requirement for the typical application of this product. In-so-far as the carbon content is concerned AMS 2341/5 states that the product ‘composition shall conform to AISI 1022 or similar steels of lower carbon content’. This requirement can be met through the usage of several AISI numbers from roughly 1005 to 1025 (Reference MIL-S-11310E, table 1) although AISI 1022 would be optimum due to the higher manganese content. I do not believe that using a product not in compliance with AMS 2431/5 would be detrimental to the peening of your product as long as there is strict adherence to the requirement for broken media and sizing of the product.
|
|
|
|
|
Joined: Nov 2010
Posts: 1
Member
|
|
Member
Joined: Nov 2010
Posts: 1 |
Hello Walter,
Did you find the AMS2431/5 standard case hardened steel peening balls manufacturer ? If yes please let me know the manufacturer information. Thank you in advance.
Zhang Yunxiao/ AMF international
|
|
|
|
|
Joined: Apr 1999
Posts: 341 Likes: 1
Member
|
|
Member
Joined: Apr 1999
Posts: 341 Likes: 1 |
This is a contact for steel balls Craig Stevenson Abbott Ball Company P.O. Box 330100, Railroad Place West Hartford, CT 06107 USA (860)236-5901 267 (860)233-1069 [email protected]
|
|
|
|
|
Joined: Apr 1999
Posts: 341 Likes: 1
Member
|
|
Member
Joined: Apr 1999
Posts: 341 Likes: 1 |
I have received numerous inquiries regarding AMS 2431 /5 which
is currently under consideration for update there appear to be an issue buying to the spec. What would people support, cancellation, or revision of the hardening criteria (case depth, shell and core hardness)? The next meeting for AMECSE is in June so giveing comments early would be beneficial.
|
|
|
|
|
|
|
