Calculation of tool nose radius compensation in CNC lathe programming

• Main Authors: NGUYEN VAN DUC, 阮文德
• Other Authors: CHING-YU YANG
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/81087043628796197163

碩士 === 國立高雄應用科技大學 === 模具工程系碩士班 === 96 === The taper cutting and the arc of a circle cutting in NC lathes programming is an important issue due to the errors induced by the nose radius of the lathes tool. There is no tool with a vanished radius that is matched to the path of tool. Practically, the simulation path in NC lathes is based on a tool without nose radius; however, the dimension of the nose radius is existed in the manufacturing process. For illustration, the compensation of the error is needed when an arc of a circle or an arc of a taper is encounter. The value of the compensation is needed to be calculate in the process of NC programming. The proposed algorithm is extracted the geometry in the area of the excess materials and leads to calculate the value of the compensation of the tool. The result shows that the error caused by the nose radius of the tool in the taper cutting and in the arc of the circle cutting by NC lathes programming can be eliminated.