G42是刀具左补偿指令,是指站在刀具路径上,向切削前进方向看,刀具在工件的左方。
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工件有锥度、圆弧时,必须在精车锥度或圆弧前一程序段建立半径补偿,一般在切削工件的程序段建立半径补偿。
A. 对
B. 错
必须在刀具补偿参数设定页面填入刀具的刀尖半径值和假想刀尖号码,否则刀具半径补偿无效。
A. 对
B. 错
在加工中,G41或G42指令可以和G00、G01、G02、G03等G指令一起使用建立刀具半径补偿功能。
A. 对
B. 错
Thebirthday phenomenon found among soccer players is mentioned to
A. stress the importance of professional training.
B. spotlight thesoccer superstars in the World Cup.
C. introduce thetopic of what makes expert performance.
D. explain whysome soccer teams play better than others.