This chamfering machine employs the principle of rolling shear to shear the edge of the steel plate according to the angel needed , to obtain the bevel for w - elding 該倒角機利用滾剪原理,對鋼板邊緣按所需角度進行剪切,以得到焊接所需坡口。
At one time complex structure and area of weariness crack ( including whole suspension hollow axis of swivel , half suspension adopted axletree , substituting holistic grinding steel wheels for wheel - hoop compounded wheels , different wheel - axletree structure of different locomotives , different transmission chamfer machining step of axletresses and driven traction gear etc . . ) centralizing make wave clutter and repeat to disturb recognition of real fault wave 同時,由于全懸掛空心軸、半懸掛抱軸承等復雜結構車軸的使用和整體碾鋼輪陸續替代輪箍組裝式車輪,各型機車輪軸結構不同,車軸加工臺階和過渡圓角不同,從動牽引齒輪與車軸采用過盈裝配等,在這些結構復雜且疲勞裂紋產生集中的區域,探傷時極易發生波形交織和重復,難以識別真正缺陷波。