数控原理与编程期末试卷及标准答案

N10 G01 X26. Z0 F0.3; G01 X30. Z-2.; Z-30.;

G02 X56. Z-43. R13.; G01 Z-63.; X71. Z-83.; Z-101.; N20 X85.; M01; T0101; M03 S800; G00 X90. Z10.; G70 P10 Q20 F0.15; G00 X150. Z100.; T0202; G00 X50.; Z-30.; G01 X25. F0.5; G04 X3.5; G01 X50.; G00 X150. Z100.;

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T0303;

G01 X35. Z5. F1.; G92 X29.5 Z-27. F2.; X29.1; X28.7; X28.3; X27.84; G00 X50.; Z10.; M05; M30;

2、如下图所示，使用?8mm的铣刀加工深度为10mm的型腔(无需考虑90X120的矩形外轮廓)。请编制相应的铣床数控程序。（8分）

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% O0002 G54; M03 S800; T01; G00 X0 Y0; G01 Z-10. F100.; G42 G01 X5. Y-10. D01; G01 Y-30.; G02 X0 Y-35. R5.; G01 X-42.;

G02 X-50. Y-27. R8.; G01 Y27.;

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G02 X-42. Y35. R8.; G01 X42.; G02 X50. Y27. R8.; G01 Y-27.; G02 X42. Y-35. R8.; G01 X0;

G02 X-5. Y-30. R5.; G01 X-5. Y-10.; Z10.; G40 X0 Y0; G00 X70. Y70.; M05; M30;

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