Abstract
In the previous report(1), it was reported that a clear reduction in grinding forces was caused by quill motion and a better surface finish could be obtained. In this report, the chip formation mechanism was investigated by observation of SEM photographs of the ground workpiece. The main results obtained are as follows. ( 1 ) The straight groove is formed on the workpiece in conventional jig grinding, while overlapped grooves are observed in chop jig grinding. ( 2 ) It is evident that the higher quill speed expands the pitch between overlapped grooves, which generates a larger chip, and vice versa. ( 3 ) The chip formation mechanism by a grinding wheel is quite similar to that of a single-grain mounted wheel. ( 4 ) The roughness of the ground surface in the longitudinal direction can be determined in relation to quill speed and feed rate. However, the surface roughness in the vertical direction can be determined by quill speed.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
