Study on the Mechanical Property of 20Cr13 Stainless Steel Barrel Processed by Cold Radial Forging

The barrel is a key part of automatic weapon. And the cold radial forging progress is a new technology for manufacturing the barrels. It will introduce some changes of the material, such as increased strength, decreased plasticity and introduction of anisotropic mechanical property. It can affect th...

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Bibliographic Details
Published in:Key Engineering Materials 2016-12, Vol.723, p.119-124
Main Authors: Qi, Yu Hui, Zhang, Xiao Yun, Cheng, Xu, Fan, Li Xia
Format: Article
Language:English
Subjects:
Blanks
Bulging tests
Cold
Cold forging
Compression tests
Diamond pyramid hardness
Forges
Hardness
Martensitic stainless steels
Mechanical properties
New technology
Radial forging
Stainless steel
Stainless steels
Vickers hardness
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Summary:The barrel is a key part of automatic weapon. And the cold radial forging progress is a new technology for manufacturing the barrels. It will introduce some changes of the material, such as increased strength, decreased plasticity and introduction of anisotropic mechanical property. It can affect the service performance, so it is necessary to study the difference of tangential and axial mechanical properties of barrel blank and forged barrel. This paper focuses on the research of 20Cr13 stainless steel barrel. The mechanical properties of barrel blank and forged barrel are measured by the tensile, compression and bulging test. And the hardness is measured by Vickers hardness tester. The structural change of 20Cr13 stainless steel also has been observed by metalloscope in the metallographic experiment. It reveals the influence of the cold radial forging progress on the mechanical properties of 20Cr13 stainless steel barrel. And it also provides the reference data of the cold radial forging progress of 20Cr13 stainless steel.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.723.119