Optimisation of the cutting edge roundness and its manufacturing procedures of cemented carbide inserts, to improve their milling performance after a PVD coating deposition

2003 ◽  
Vol 163-164 ◽  
pp. 625-630 ◽  
Author(s):  
K.-D Bouzakis ◽  
N Michailidis ◽  
G Skordaris ◽  
S Kombogiannis ◽  
S Hadjiyiannis ◽  
...  
2012 ◽  
Vol 201-202 ◽  
pp. 1174-1177
Author(s):  
Jiao Wang ◽  
Hao Wang ◽  
Ai Bing Yu

Micro-cracks on cutting edge will cause early breakages on cutting tools, accelerate tool wear and reduce cemented carbide tool life. Edge preparation can improve the cutting edge quality. Vibration polishing experiments were carried out for cemented carbide inserts edge preparation. Inserts and fixtures were put into the vibration polishing equipment which forced abrasive particles to collide and polish inserts. Edge preparation for fixed type insert and free type insert were compared with three sizes of abrasive particles. And the polishing time was changed for each testing cases. Experiments were carried out by altering polishing time, abrasive particle size and tool clamping way to determine the optimum technology of vibration polishing edge preparation. The experimental results showed that edge breakage numbers of insert significantly reduced. Smooth and round cutting edges were observed by optical microscope after edge preparation. Edge preparation experiments prove that edge preparation can change the cutting edge geometry and improve the cutting tool quality.


2007 ◽  
Vol 534-536 ◽  
pp. 1241-1244 ◽  
Author(s):  
Dong Gil Ahn ◽  
Kern Woo Lee ◽  
Joo Wan Lee ◽  
Moshe Sharon

The effects of substrate surface treatment on TiAlN PVD coating on submicron cemented carbide was investigated. Surface roughness and morphology were improved by physical treatment such as micro blasting, brush lapping and plasma etching with decreased Co content in the surface layer. The Co content in the surface does not seem to affect coating adhesion or the quality considerably. The smoother surface induced by the surface treatment improved TiAlN adhesion and surface roughness. The insert treated by blasting and lapping before coating showed a better cutting performance than those with ultrasonic treatment. It was concluded that the substrate surface characteristics are closely related to the performance of the TiAlN coated inserts.


Wear ◽  
2018 ◽  
Vol 404-405 ◽  
pp. 50-61 ◽  
Author(s):  
G. Skordaris ◽  
K.-D. Bouzakis ◽  
P. Charalampous ◽  
T. Kotsanis ◽  
E. Bouzakis ◽  
...  

Mechanik ◽  
2019 ◽  
Vol 92 (12) ◽  
pp. 827-829 ◽  
Author(s):  
Agata Felusiak ◽  
Martyna Wiciak-Pikuła ◽  
Tadeusz Chwalczuk ◽  
Piotr Kieruj ◽  
Paweł Twardowski

The paper presents the analysis of the influence of laser assisted machining (LAM) on various parameters of surface roughness of stainless steel. The tests were carried out for cemented carbide inserts with varying cutting parameters. In most cases, a significant reduction in the roughness parameters was observed using LAM.


Author(s):  
Raonei Alves Campos ◽  
Andre Contin ◽  
Vladimir Jesus Trava-Airoldi ◽  
Danilo Maciel Barquete ◽  
Evaldo José Corat

Author(s):  
Raonei Alves Campos ◽  
Andre Contin ◽  
Vladimir Jesus Trava-Airoldi ◽  
Danilo Maciel Barquete ◽  
Evaldo José Corat

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