1349 Каталог INGERSOLL 2011 Режущий инструмент и инструментальная оснастка Стр.1351

Каталог INGERSOLL 2011 Инструмент и оснастка Стр. 1351 1349 Lab2u

GENERAL TECHNICAL INFORMATION PARTING AND GROOVING PRACTICAL TROUBLE SHOOTING 1. TO REDUCE BURR On CNC reduce feed by 75% when approaching center stub diameters WOC Check center height of cutting edge Use insert with lead angle If 0 lead angle must be used for whatever reason apply narrow WOC Apply a supporting part-catcher (or adjust concentricity) For hollow bars it is better to machine chamfers using ID boring tool prior to parting operation. (See picture) 2. TO IMPROVE SURFACE FINISH Increase cutting speed Use neutral inserts Select chipformer that provides optimum chip control Use coated carbide Improve coolant application Eliminate chatter 3. TO IMPROVE FLATNESS Check inserts and replace any that show wear. Use neutral inserts Use largest blade possible i.e. TGB 32- instead of TGB 26- Increase blade thickness and insert width Minimize blade overhang Check alignment and perpendicularity of tool to machine axis Optimize workpiece chucking Lock the carriage on manually operated lathes Apply coolant abundantly (excluding Ceramic AB30) Reduce feed 4. TO IMPROVE CHIP CONTROL Replace worn inserts Choose a more appropriate chipbreaker Use a neutral insert Check alignment and perpendicularity of tool to machine axis Apply coolant abundantly Increase feed At initial groove depth interrupt feed momentarily to let the chip enter slot 1351