EXAMPLE #4 – STANDARD TURNING SIMULTANEOUS UPPER & LOWER OPERATION USING LEFT & RIGHT SPINDLES WITH PART TRANSFER MATERIAL : AISI 4140 ALLOY STEEL - 275 HB STOCK : 3.5 DIA ROUND BAR X 4.85 LONG PROJECTION: 2.5 MINIMUM FROM JAW FACE ADAPTERS : SANDVIK C6-ASHR-38130-16-A (2) HOLDERS : MCLNR-164D (2), MVJNR-164D (2) INSERTS : CNMG-432 (2), VNMG-431 (2) SPINDLES : LEFT MAIN W/UPPER, RIGHT MAIN W/LOWER WORK COORD: G54=LEFT MAIN W/UPPER, G55=RIGHT MAIN W/LOWER ORIGIN : X0.0 = SPINDLE CENTERLINE, Z0.0 = FINISHED FACE PROCESS : FACE, ROUGH & FINISH TURN 1 ST HALF OF PART – LEFT MAIN w/UPPER : FACE, ROUGH & FINISH TURN 2 ND HALF OF PART – RIGHT MAIN w/LOWER :
STOP, REMOVE FINISHED PART FROM RIGHT SPINDLE : TRANSFER PART FROM LEFT SPINDLE TO RIGHT SPINDLE : LOAD NEW STOCK AND CONTINUE SIMULTANEOUS OPERATION - 20 -