Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Milling Cutting tool is rotated and traversed along 3 axes of motion to produce from simple rectangular.

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Presentation transcript:

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Milling Cutting tool is rotated and traversed along 3 axes of motion to produce from simple rectangular plane, slot, hole and complex contour.

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Milling

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Machining center (CNC Milling) Horizontal M/C Bridge TypeC Type Vertical M/C 5AX M/C

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Huge 3+2 axis milling has additional rotation BC axis on head. Used for automobile door panel and bumper mold axis machining (5 면가공기 )

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU 5-axis machining (5 축가공기 ) Has 2 tinting A C or B C axis on table or head. Rotary table: Impeller :

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Automatic Tool Changer (ATC) Changer Arm Tool Spindle

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Automatic Pallet Changer (APC) Pallet #1 Pallet #2

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Work holding Vise, Clamp ( 치구 ) Work is fixed by vise or clamp on the table with T-slot Flex clamp:

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Tool holder, Tools Holder + Collet + Solid EndmillInsert Endmill

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Tool holder, Tools

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Milling operations Face Cutter Basic: Face: Endmill: Flat endmill (Slotting) Face cutter Endmill : Flat, Ball, Rounded

Machining Manufacturing Processes © 2012 Su-Jin Kim GNU Math for milling Cutting speed(mm/min) = 3.14 x Diameter x Spindle V = π D S Feed per tooth = Feed / (Spindle x Number of teeth) MMR = Depth x Width x Feed MRR = d w F ftft w d F (mm/min)