答案:G90循环单一外径形状固定循环。轴向切削循环,G90格式:G90X(U)Z(W)IFG94循环端面自动切削循环。径向切削循环。适用于端面路径循环的切削加工,可用于直端面和锥端面车削循环。格式:G94X(U)Z(W)KF;3-5数控车床的刀具补偿包括哪些内容?如题图3-1所示的刀架,假定用I号刀对刀,写出Ⅱ、Ⅲ号刀的位置补偿量。(刀架在里)题图3-1参考答案:包括刀具半径补偿和刀具长度补偿。3-6对题图3-2和题图3-3所示零件进行数控编程。题图3-2参考答案:T0101G54G98G0X100Z100S1200M3G42X50Z3M8G73U12W1R10G73P10Q20U0.4W0.2F150N10G1X16F80Z0X20Z-2Z-26X24Z-28Z-48X30W-35G3X35W-20R18G1W-5N20X40G70P10Q20G40X100Z100M9M5M30题图3-3参考答案:T0101G54G98G0X100Z100S1200M3G42X50Z3M8G71U1.5R1G71P10Q20U0.4W0.2F150N10G1X0F80Z0X11X15Z-2Z-12X24G3X30W-3R3G1Z-27G2X40Z-32R5N20G1X42G70P10Q20G40X100Z100M9M5M303-7用外径粗加工复合循环编制题图3-4所示的零件的加工程序:要求循环起始点在A(46,3),切削深度为1.5mm(半径量)。退刀量为1mm,x方向精加工余量为0.4mm,z方向精加工余量为0.1mm。题图3-4参考答案:T0101G54G98G0X100Z100S1200M3G42X46Z3M8G73U15W1R10G73P10Q20U0.4W0.1F150N10G1X26F80Z0X30Z-2Z-18X26Z-20W-5X36W-10W-10G2X30W-9R25