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更多“加工螺纹时，应选用旋转进给模式进行编程。（)”相关的问题
数控车编程
毛坯：Ф40×100mm
进给速度：精车0.05mm/r；车槽0.03mm/r；其余0.3mm/r
X方向精加工余量为0.5mm/1，Z方向精车余量为0.2mm
在横线上填写加工指令，括号中填写程序的说明。
编程如下：00001
N10 TD101 粗、精车外圆
N20 S400 M03
N30 G00 X45.0 Z2.0
N40 G71 U1.0 R0.5 (______)
N50 G71 ______
N60 G00 X14.0
N70 G01 Z0
N80 X16.0 Z-1.0 (______)
N90 ______
N100 ______
N110 ______
N120 ______
N130 ______
N140 ______
N150 ______
N160 G01 Z-83.0
N170 G70 ______
N180 G00 X50.0 Z60.0
N190 1D202 切槽
N200 S200 M03
N210 M08
N220 G00 ______
N230 G01 X13.0 F0.03
N240 G04 P1000 (______)
N250 G00 X40.0
N260 Z-64.0
N270 G01 ______
N280 G04 P1000
N290 G00 X38.0
N300 Z-63.0
N310 G01 X34.0 Z-64.0 F0.1
N320 G00 X38.0
N330 Z-65.0
N340 G01 X34.0 Z-64 F0.1
N350 G00 X40.0
N360 Z-82.0
N370 G01 X33.0 F0.03
N380 G00 X40.0
N390 Z-79.0
N400 G01 X34 Z-82.0 F0.1
N410 G00 X50.0
N420 Z60.0
N430 T0303 加工螺纹
N440 S450 M03
N450 G00 X18.0 Z-18.0
N460 ______ X15.2 ______ 单线螺纹，螺距1.5
N470 ______
N480 ______
N490 ______
N500 G00 X50.0
N510 Z60.0
N520 T0202 切断
N530 S200 M03
N540 G00 ______
N550 G01 X0.0 F0.03
N560 M09
N570 G00 X50.0
N580 Z0
N585 M05
N590 M30
A.改变加工时的刀具的进给速度
B.提高进给伺服系统增益
C.降低进给伺服系统增益
D.刀具到达拐角处暂停30～50毫秒
