加工中心刀具切削参数

加工中心刀具切削参数CNC加工应分为低速加工和高速加工两大类，普通机是指机床转数8000转以内的机床，高速机是指转数能超过12000转的机床，介于800012000之间的机床叫准高速机，此参数只针对普通机。CNC加工工艺习惯上分三类，开粗，中光(半精)，光刀(精铣)，一般以为开粗宜用较大刀具(飞刀和端铣刀)并用较大的切削深度和步距(重切削)，以求快速大量的去除材料。光刀则以轻切削(小切深,，小步距)配合较高转数和进给运行，以求得完美的表面精度。光平面用端铣刀(或圆角刀)和飞刀，光垂直壁用端铣刀，光曲面用球刀(或圆角刀)。在加工过程中，应根据被加工零件的材料硬度，选用适当的刀具，如塑胶，木料等可选用国产的白钢刀。铜，铝材以及硬度在洛氏38度以内的钢材(如45号钢,王牌料)应选用进口的钢刀及国产优质的钢刀。硬度较大的材料(如淬硬模具钢)应优先选用合金刀，镀钛刀或钨钢刀。本参数针对普通CNC机床，针对开粗和光刀分别对各种刀具加以说明(飞刀，白钢，端铣刀，钨钢平铣刀，白钢球刀，钨钢球刀)。因加工素材繁多，本表仅以富有代表性的铝合金，45号钢，不锈钢加以说明。 表一（飞刀 开粗 以45号钢为例） 刀具种类深度（毫米）步距F（进给）S（转速）40R630R5112820120015001500170025R50.8151500170020R40.6121600180025R10.8181400160020R0.80.6151500170016R0.40.5121400170012R0.40.5913001800表二（进口 白钢平刀开粗 铝合金 45号钢）刀具深度步距FS铝钢铝钢铝钢2520.81818001200200015002020.8151700110020001500161.50.7121700110022001600121.50.691600100022001600101.20.57150090023001700810.56150090024001700610.5415008002400170050.80.4312007002500180040.80.42.510006002600180030.50.328005002800190020.30.216004002900200010.20.10.550030030002200表三（白钢球刀光刀 铝合金 45号钢）刀具加工前留量步距SF铝钢铝钢铝钢20R100.250.150.3220018002300150016R80.250.150.3220018002300150012R60.20.120.25250020002600180010R50.20.120.2525002000260018008R40.20.120.226002300240016006R30.150.10.1528002400230015004R20.120.080.1230002500180012003R1.50.10.060.083200260016009002R10.080.050.063500270013006001R0.50.060.040.04380028001200500表四（钨钢球刀光面 45号钢 不锈钢）刀具加工前留量步距SF45号钢不锈钢45号钢不锈钢45号钢不锈钢20R100.20.150.25240024002000180016R80.20.120.25240024002000180012R60.150.10.2260027002200200010R50.150.10.226002700220020008R40.150.10.1528002800200016006R30.120.080.1230003000180015004R20.10.060.0832003200130010003R1.50.080.050.063500350010007002R10.070.040.05380038006005001R0.50.050.030.0340004000500400表五（钨钢平刀光刀 45号钢 不锈钢）刀具最大切削量最大切深SF45号钢不锈钢45号钢不锈钢45号钢不锈钢45号钢不锈钢160.30.25403016001600800700120.250.2352517001700800700100.20.1530201700170075065080.150.125201800180065060060.150.120152000200060050050.10.0815102200220050040040.080.061072300230040030030.060.05532500250040030020.20.15113000300070050010.150.10.50.535003500600400表六（白钢平刀光刀 铝合金 45号钢）刀具最大切削量最大切削深度SF铝合金45号钢铝合金45号钢铝合金45号钢铝合金45号钢160.40.255035170016001200800120.350.24030170016001000700100.30.1535201800170090060080.250.130152000180090055060.20.125102200190080050050.150.0820823002