Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (9): 1278-1282.DOI: 10.12068/j.issn.1005-3026.2016.09.014

• Mechanical Engineering • Previous Articles     Next Articles

Experiment of Surface Roughness in Pre-stressed Hardening Grinding Compound Machining

WANG Yu-shi1, SONG Jian-wei2, XING Yun3, XIU Shi-chao1   

  1. 1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China;2. AVIC Shenyang Liming Aero-Engine
  • Received:2015-06-05 Revised:2015-06-05 Online:2016-09-15 Published:2016-09-18
  • Contact: XIU Shi-chao
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Abstract: Taking change law of specimen surface roughness under pre-stressed hardening grinding conditions as study object, 45 steel pieces were measured to analyze the influence mechanism of process parameters (pre-stress, grinding depth and feed speed) on the surface roughness. The experimental results show that the roughness is nonuniform and its value gradually increases from cut-in area to cut-out area. The increase of pre-stress value can decrease the surface roughness, inhibit surface microcosmic crack, reduce grinding temperature, and improve the surface quality of specimen. As same as to general grinding, the surface roughness gradually increases with the increase of grinding depth and feed speed.

Key words: pre-stressed hardening grinding, surface roughness, microstructure, compound machining, grinding depth

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