Quality Control of Heat-Treated Surface of 20CrMo Steel Transmission Countershaft

Hong Mei Wang; Xiao Juan Wang; Xiao Chun Ma

doi:10.4028/www.scientific.net/AMR.199-200.1528

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Quality Control of Heat-Treated Surface of 20CrMo Steel Transmission Countershaft
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 199-200Quality Control of Heat-Treated Surface of 20CrMo...

Quality Control of Heat-Treated Surface of 20CrMo Steel Transmission Countershaft

Abstract:

After heat treatment, the surface hardness and effective depth of hardened layers of automotive transmission countershaft, determines the quality of the part itself as well as the normal and reliable operation of the transmission assembly. The paper analyzes the specific reasons for such problems as soft zone on the hardened surface of transmission countershaft when proceeding with carbonitriding in the controlled atmosphere furnace, a multi-purpose furnace. And with process parameters adjusted, the process parameters of heat treatment are corrected that the soft zone has been eliminated and the quality of parts has been effectively controlled.

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Periodical:

Advanced Materials Research (Volumes 199-200)

Pages:

1528-1531

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.199-200.1528

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Online since:

February 2011

Authors:

Hong Mei Wang, Xiao Juan Wang, Xiao Chun Ma

Keywords:

Carbonitriding, Countershaft, Soft Zone, Surface Hardness

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References

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