抄録
Residual stress in machining process affects the shape accuracy and the life of the product to be manufactured. Therefore, residual stress should be controlled to achieve the high quality of the product in the machining operation. This study discusses residual stress in milling in terms of the cutting force. The milling process in finishing surface consists of ploughing and cutting manners. The cutting tests were conducted to measure the cutting forces in up-cut milling with changing the feed rate. The minimum chip thicknesses were estimated at the change in the cutting force around the edge engagement process. Then, the resultant cutting forces and its directions in finishing a surface were determined to estimate the loading condition onto the workpiece surface. Residual stresses were measured in X-Ray measurement based on the principle of cos α scheme. Residual stresses are associated with the resultant cutting force and the cutting force direction.
