|
|
|
| Research on PCD Tool Wear in Turning Titanium Matrix Composites |
| REN Jinggang1，LI Yangyang2，SU Honghua2，HUAN Haixiang2，LIANG Xinghui3 |
(1. Xi’an Aero-Engine Plc, Xi’an 710021, China;
2. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China;
3. Shanghai Spaceflight Precision Machinery Institute, Shanghai 200426, China) |
|
|
|
Abstract The single factor experimental method was used to the experiments of turning titanium matrix composites
with PCD tools. The wear morphology and mechanism were studied. The results show that, within the cutting speed region
of 15~60m/min, the cutting force gradually decreases from 473N to 367N, the cutting temperature increases gradualls from
274℃ to 564℃ ; the cutting distance increases from 390 m to 702 m and then reduces to 467 m and achieved the maximum
at the cutting speed 45 m/min; the tool wear take place on the rake and flank face at the same time instead of a typical crater
wear on the rake face, the typical strip wear take place on the flank face, both furrow grooves and titanium alloy occur on
the rake and flank face; the tool wear is believed to be caused mainly by the abrasive wear and the adhesive wear. With the
increasing of cutting speed, abrasive wear gradually weakenes while the adhesion wear is obvious.
|
|
|
|
|
|
|
|
|
2017, 
