TOOL AND DIES

CNC PROGRAMMING G70 Bolt Hole Circle : I  - Radius *  J  - Starting angle (0 to 360.0 degrees CCW from horizontal; or 3 o clock position) L  - Number of holes evenly spaced around the circle *indicates optional This non-modal G code must be used with one of the canned cycles  G73 ,  G74 ,  G76 ,  G77 , or  G81 - G89 . A canned cycle must be active so that at each position, a drill or tap function is performed. See also G-code Canned Cycles section. % O60701 (G70 BOLT HOLE CIRCLE) ; (G54 X0 Y0 is center of the circle ) ; (Z0 is on the top of the part) ; (T1 is a drill) ; (BEGIN PREPARATION BLOCKS) ; T1 M06 (Select tool 1) ; G00 G90 G40 G49 G54 (Safe startup) ; G00 G54 X0 Y0 (Rapid to 1st position) ; S1000 M03 (Spindle on CW) ; G43 H01 Z0.1 (Activate tool offset 1) ; M08 (Coolant on) ; (BEGIN CUTTING BLOCKS) ; G81 G98 Z-1. R0.1 F15. L0 (Begin G81) ; (L0 skip drilling X0 Y0 position) ; G70 I5. J15. L12 (Begin G70) ; (Drills 12 holes on a 10.0 in. diameter

THERMOPLASTIC THE THERMOPLASTIC ARE HEATED AND BROUGHT TO MOLTEN STATE IN AN INJECTION MOLDING MACHINE . THE MACHINE INJECT THE PLASTIC INTO THE METAL MOLD WHERE IT COOLED. AFTER SOLIDIFICATION OF THE PLASTIC THE MOLD IS OPEN AND THE THE COMPONENT IS EJECTED THIS PROCESS IS CALLED INJECTION MOLDING. THE OTHER PROCESS ALSO CAN TAKE PLACE IN THERMOPLASTIC MATERIAL I.E. BLOW MOLDING, ROTATIONAL MOLDING AND EXTRACTION MOLDING PROCESS(HOLLOW ARTICLES) Polystyrene (PS) Learn More About High-Quality Polystyrene Plastic Used in Injection Molding One of the most common plastics used in THERMOPLASTIC MATERIAL is polystyrene, a synthetic polymer often used when molding packaging and industrial components. Usually in the form of foam or plastic, polystyrene is a non-toxic and odorless material, and is one of the predominant plastics used in the food packaging industry as well as the automation industry. Its solidity and clarity make it useful for everything from automobile

CNC PROGRAMMING G12 Circular Pocket Milling CW / G13 Circular Pocket Milling CCW (Group 00) These G-codes mill circular shapes. They are different only in that  G12  uses a clockwise direction and  G13  uses a counterclockwise direction. Both G-codes use the default  XY  circular plane ( G17 ) and imply the use of  G42  (cutter compensation) for  G12  and  G41  for  G13 .  G12  and  G13  are non-modal. *  D  - Tool radius or diameter selection** F  - Feedrate I  - Radius of first circle (or finish if no  K ).  I  value must be greater than Tool Radius, but less than  K  value. *  K  - Radius of finished circle (if specified) *  L  - Loop count for repeating deeper cuts *  Q  - Radius increment, or stepover (must be used with K) Z  - Depth of cut or increment *indicates optional **To get the programmed circle diameter, the control uses the selected D code tool size. To program tool centerline select  D0 . NOTE Specify D00 if you do not want to use cutter compen

CNC PROGRAMMING In  pocket milling  the material inside an arbitrarily closed boundary on a flat surface of a work piece is removed to a fixed depth. Generally flat bottom end mills are used for  pocket milling . Firstly roughing operation is done to remove the bulk of material and then the  pocket  is finished by a finish end  mill . G150 General Purpose Pocket Milling (Group 00) D - Tool radius/diameter offset selection F - Feedrate I - X-Axis cut increment (positive value) J - Y-Axis cut increment (positive value) K - Finishing pass amount (positive value) P - Subprogram number that defines pocket geometry Q - Incremental Z-Axis cut depth per pass (positive value) * R - Position of the rapid R-plane location * S - Spindle speed X - X start position Y - Y start position Z - Final depth of pocket * indicates optional The G150 starts by positioning the cutter to a start point inside the pocket, followed by the outline, and complete