Question

Problem 5: An nu machine is at the home position and is commanded to drill three holes in the sequence shown. Write the axis positions for each hole for absolute and incremental positioning systems. Workplece Mole2 0.560 2.000 1.000 000 1000 1.250 1.000 in 3 000 in (b) The part outline is to be milled with the same tool. Write the complete APT program using the following information: Inside and outside tolerance = 0.002 in. Feedrate=5 in/min Speed = 500 rpm

Answer 1

yo I from hole 2 to Hole 3 Solo 5 (a) Absolute positioning System : Hole 1 : from home to Hot 1] X 2 y 2.5 [ Hole 2: from home to Hole 2 2] X 2 -C y 2 Hole 3 :- X 3.25 42 [ from Holter to Hole 3] Incremental positioning System : Hole 1 : X 2 from home to Hole 1] y 2.5 [ Hole 2 :- Х from hole 1 to Hole 2 12] y -0.5 [ Hole 3:- X 1.25

(6) 2. 40 Py R20 100 P3 40 1L2 L 7X 1 P2 > po 100 MACHIN MILLING, 01 UNITS ) INCH CUTTER | 20.0 P TARG = POINT | 0, -50.0, 10.0 POINT) 0,0, POINT / 100, 0, -25.0 POINT | 100, 40, -25.0 P1 = - 250 P2 P3 = 100 P4- POINT, 40, -25.0 POINTI 0, 100,.-25-0 Ås - Po ») 60, 60, -23.0 POINT I

w LIS L2 = LINE | P2, P2 LINE | P2 CIRCLE | CENTER , PG , RADIUS, 20.0 P 3 ( 1 = 01 > L 3 = LINE | P3, LEFT, TANTO P4 L4 - LINE | RIGHT, TATO, C1, LS = LINE | P4, P5 L6= LINE , PG, P1 PL 1 = PLANE I P1, P2, PS FROM I PTARG SPINDL / 500 CLW FEED RAT / 5, IPM GO TO L1 , TO, PL1, ON, LG GORGI | 21, PAST, h

GOLFT , L2, PAST, L3 4 Go LF5 13 , TANTO C1 PAST , L4 Ro FWD / C1 GO AWO I LU, PAST , 25 Go LFT LS, PAST, L6' Go LFT | LG, PAST, 11 RAPID GOTO | PTARG SPINDL Off FINI Completed