供应6ES5464-8MA11;
6ES5464-8MA11。
根据模具加工的特点，以及数控机床新工艺的要求，建议在加工工艺上采取一些措施，以便发挥机床的高精度、率的特点，保证模具加工质量。
(1) 要精选材料，毛坯材质要均匀，目前有些材料可以做到在粗加工后变形量比较小。铸锻件要经过高温时效，消除内应力，使材料经过多工序加工之后变形较小。
(2) 合理安排工序，精化零件毛坯。在模具的生产过程中不可能靠一两台数控铣床完成零件的全部加工工序，而是要与普通铣床、车床等通用设备配合使用。所以在工序的安排上应考虑生产节拍和生产能力是否平衡，在保证高精度、率的前提下，数控加工和普通加工的经济性是否合理，以及数控加工和通用设备加工的各自特长，因此在数控加工前的毛坯应尽量精化，除去铸锻，热处理产生的氧化硬层，只留少量加工余量，加工出基准面、基准孔等。
(3) 数控机床的刚性强、热稳定性好，功率大，在加工中尽可能选择较大的切削用量，这样既可满足加工精度要求又提高了效率。
(4) 有些零件由于切削内应力、热变形、装夹位置的合理性，夹具夹紧变形等原因，必须多次装夹才能完成。不能一味追求快，而不顾加工的合理性。
(5) 加工工序的顺序建议为：
①重切削、粗加工、去除零件毛坯上大部分余量。如粗铣大平面、粗铣曲面、粗镗孔等。
②加工发热量小，精度要求不高的内容。如半精铣平面，半精镗孔等。
③在模具加工中精铣曲面。
④打中心孔、钻小孔、攻螺纹。
⑤精镗孔、精铣平面、铰孔。
注意在重切削、精加工时要有充分的冷却液，粗加工后至精加工之前要有充分的冷却时间，在加工中尽量减少换刀次数，减少空行程移动量。
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