both pictures represent same question . The outline of the cam in Figure Q3(c) i
ID: 2073369 • Letter: B
Question
both pictures represent same question .
The outline of the cam in Figure Q3(c) is to be machined in an end milling operation, using a 12.5 mm diameter end mill with two teeth and Side tooth engagement length of 25 mm. The part is 7.5 mm thick. Develop the complete APT program for enerating the CNC program, using a feed rate-80 mm/min and a spindle speed 500 rev/min. Coolant type to be used is flood Postprocessor call statement is MACHIN/MILL, 03. Assume the rough outline for the part has been obtained in a band saw operation. Ignore clamping issues in the problem. Take the PO at the origin of the coordinate axes and the required Z coordinate value through which the part surface will pass. Use appropriate target point for the target point. C2 P3 23 -3 12.3mm L3 75th 5 Radius of Circle C3 = 17.5 mm Radius of Circle C4 10 mmExplanation / Answer
N10 G21 G90 G92 X0 Y-20 Z10
N20 G00 X25 Y25
N30 G54
N40 G01 G95 Z-15 F80 S500 M03
N50 G01 Z10
N60 G01 X0 Y0
N70 G01 X75 Y0
N80 G02 X175 Y150
N90 G03 X0 Y150 C17.5
N100 G03 X-75 Y20 C10
N110 G01 X0 Y20
N120 G00 G95 Z-15 X0 Y-10
N130 M05
N140 M30
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