When CNC Turning is machined, can set constant cutting rate by need (for example, the exterior surface roughness that is the workpiece after assuring turning is consistent, should install) of constant cutting speed, the rotate speed of the diametical computation main shaft that system of the numerical control in turning process is not in with the position according to the workpiece when turning. Constant cutting speed installs a method to be as follows: G96S; among them digital unit is R/min at the back of S. After setting constant cutting rate, if can not cancel when need, its means is as follows: G97S; among them digital unit is R/min at the back of S. After setting constant cutting rate, because the rotate speed of main shaft is in workpiece is different and sectional going up is change, to prevent main shaft rotate speed exorbitant and it is dangerous to happen, before setting constant cutting rate, can main shaft setting of top rotate speed is in certain is highest value. When constant cutting rate should be being implemented in cutting process, main shaft is highest rotate speed will is in by limitation this highest value. Setting method is as follows: G50S; among them the unit of S is R/min. Be like,main shaft speed controls key: Constant cutting speed is installed to be 200m/min with G96 when appearance of cutting of cutting tool T01, and constant cutting speed cancels with G97 when broach T02 drills central hole, install main shaft rotate speed to be 1100r/min. The program head of this two parts is as follows: G50S2500T0101M08;/G50 limit is top main shaft rotate speed is 200m/min for speed of cutting of 2500r/min;G96S200M03;/G96 setting constant, main shaft arranges G0048 of hour hand roll. 0Z3.
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12;/ drills central hole CNC Milling
CNC Machining