The Performances of Different Coated Carbide Drills when Drilling a Cast Nickel-Based Alloy

2012 ◽  
Vol 497 ◽  
pp. 41-45 ◽  
Author(s):  
C. Xue ◽  
W.Y. Chen
Keyword(s):  
Wear Resistance ◽  
Tool Wear ◽  
Cutting Force ◽  
Thrust Force ◽  
Force Measurement ◽  
Good Adhesion ◽  
Cutting Force Measurement ◽  
Nickel Based Alloy ◽  
Overall Performance ◽  
Coated Carbide

The performances of different coated carbide drills when drilling cast GH625 nickel-based alloy were evaluated in terms of tool wear and cutting force. Wear pattern observation and cutting force measurement were conducted under different cutting conditions. It was found that the drill coated with TiAlN/TiN showed the best overall performance among all the drill types tested. This drill type gave the longest tool life in terms of number of holes partly due to the excellent wear resistance of TiAlN/TiN multilayer. Besides, the thrust force and torque produced with this drill type were lower, which could be attributed to its good adhesion resistance and chip-ejection ability.

Effects of Cutting Parameters on Tool Wear and Thrust Force in Drilling Nickel-Titanium (NiTi) Alloys Using Coated and Uncoated Carbide Tools

2018 ◽  
Vol 791 ◽  
pp. 111-115 ◽  
Author(s):  
Rosmahidayu Rosnan ◽  
Azwan Iskandar Azmi ◽  
Muhamad Nasir Murad
Keyword(s):  
Wear Resistance ◽  
Tool Wear ◽  
Thrust Force ◽  
Cutting Parameters ◽  
Nickel Titanium ◽  
Burr Formation ◽  
Machining Processes ◽  
Drilling Parameters ◽  
Mechanical Machining ◽  
Coated Carbide

The difficulties of machining nickel-titanium alloys are due to their high ductility and super-elasticity, strong strain-hardening, and excellent wear resistance. These characteristics lead to poor chip breakability, high cutting forces, rapid and aggressive tool-wear, as well as excessive burr formation during mechanical machining processes. The present study addresses these issues by evaluating the effects of drilling parameters and drill bit coatings on the growth of tool wear and development of the drilling thrust force. The findings from this research indicate that the TiAlN coated carbide drill was found to significantly improve the wear resistance of the cutting tool. Likewise, the results of thrust force development are consistent with the trends of tool wear growth for all of the tested carbide drills.

Three-axial cutting force measurement in micro/nano-cutting by utilizing a fast tool servo with a smart tool holder

CIRP Annals ◽  
2021 ◽  
Author(s):  
Yuan-Liu Chen ◽  
Fuwen Chen ◽  
Zhongwei Li ◽  
Yang Zhang ◽  
Bingfeng Ju ◽  
...  
Keyword(s):  
Cutting Force ◽  
Force Measurement ◽  
Fast Tool Servo ◽  
Tool Holder ◽  
Cutting Force Measurement

A Review of Recent Studies of Dynamometers for Cutting Force Measurement in Machining Processes

2021 ◽  
Author(s):  
Abdul Raheem ◽  
Rehan Khan ◽  
Abdur Rehman Mazhar ◽  
Hamdan H. Ya ◽  
Mohammad Azad Alam ◽  
...  
Keyword(s):  
Cutting Force ◽  
Force Measurement ◽  
Machining Processes ◽  
Cutting Force Measurement

scholarly journals Investigation of AlCrN-Coated Inserts on Cryogenic Turning of Ti-6Al-4V Alloy

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1338
Author(s):  
Lakshmanan Selvam ◽  
Pradeep Kumar Murugesan ◽  
Dhananchezian Mani ◽  
Yuvaraj Natarajan
Keyword(s):  
Tool Wear ◽  
Cutting Force ◽  
Physical Vapor Deposition ◽  
Metal Cutting ◽  
Cutting Speed ◽  
Depth Of Cut ◽  
Machining Parameters ◽  
Machined Surface ◽  
Coated Carbide ◽  
Cryogenic Conditions

Over the past decade, the focus of the metal cutting industry has been on the improvement of tool life for achieving higher productivity and better finish. Researchers are attempting to reduce tool failure in several ways such as modified coating characteristics of a cutting tool, conventional coolant, cryogenic coolant, and cryogenic treated insert. In this study, a single layer coating was made on cutting carbide inserts with newly determined thickness. Coating thickness, presence of coating materials, and coated insert hardness were observed. This investigation also dealt with the effect of machining parameters on the cutting force, surface finish, and tool wear when turning Ti-6Al-4V alloy without coating and Physical Vapor Deposition (PVD)-AlCrN coated carbide cutting inserts under cryogenic conditions. The experimental results showed that AlCrN-based coated tools with cryogenic conditions developed reduced tool wear and surface roughness on the machined surface, and cutting force reductions were observed when a comparison was made with the uncoated carbide insert. The best optimal parameters of a cutting speed (Vc) of 215 m/min, feed rate (f) of 0.102 mm/rev, and depth of cut (doc) of 0.5 mm are recommended for turning titanium alloy using the multi-response TOPSIS technique.

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