曲面冲击头随焊冲击旋转挤压法控制40Cr钢冷裂纹

张勇, 孙琳琳, 綦秀玲

Research on Preventing Weld Cold Crack of 40Cr by Impact Revolution Curved Rod

ZHANG Yong, SUN Linlin, QI Xiuling

中国机械工程 . 2017, (09): 1097 -1100 .