scholarly journals SURFACE ROUGHNESS AND ITS PREDICTION IN HIGH SPEED MILLING OF ALUMINUM ALLOYS WITH PCD AND CEMENTED CARBIDE TOOLS

2019 ◽  
Vol 2019 (04) ◽  
pp. 3136-3141 ◽  
Author(s):  
U. Teicher ◽  
S. Pirl ◽  
A. Nestler ◽  
A. Hellmich ◽  
S. Ihlenfeldt
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloys ◽  
High Speed ◽  
Cemented Carbide ◽  
High Speed Milling ◽  
Cemented Carbide Tools

Experimental Investigation on High-Speed Milling of Aluminum Alloys

2011 ◽  
Vol 418-420 ◽  
pp. 1141-1147
Author(s):  
Yong Liu ◽  
Li Tang Zhang ◽  
Zhi Hong Xu
Keyword(s):  
Residual Stress ◽  
Surface Roughness ◽  
Experimental Investigation ◽  
Aluminum Alloys ◽  
High Speed ◽  
Depth Of Cut ◽  
Processing Temperature ◽  
Single Factor ◽  
High Speed Milling ◽  
Radial Depth

High-speed milling is recognized as one of rapidly development machining methods. The article gives details of machining experiments with different aluminum alloys. Through a lot of single factor experiments and the orthogonal multi-factor experiments, and also use method of semi-artificial thermocouple. This paper mainly studies influence of surface roughness and residual stress with changed rotate speed, tooth load and radial depth of cut, and changed law of processing temperature for rotate speed. Though experiments shows that enhancing rotate speed may reduce surface roughness and residual stress within certain limits and the result of experiments is not agree with Carl Salomon’s theory.

Machining Evaluation of High-Speed Milling for Thin-Wall Machining of Al7075-T651

2014 ◽  
Vol 541-542 ◽  
pp. 785-791 ◽  
Author(s):  
Joon Young Koo ◽  
Pyeong Ho Kim ◽  
Moon Ho Cho ◽  
Hyuk Kim ◽  
Jeong Kyu Oh ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Surface Integrity ◽  
Cutting Forces ◽  
High Speed ◽  
Surface Condition ◽  
Cutting Conditions ◽  
Depth Of Cut ◽  
Thin Wall ◽  
Machined Surface ◽  
High Speed Milling

This paper presents finite element method (FEM) and experimental analysis on high-speed milling for thin-wall machining of Al7075-T651. Changes in cutting forces, temperature, and chip morphology according to cutting conditions are analyzed using FEM. Results of machining experiments are analyzed in terms of cutting forces and surface integrity such as surface roughness and surface condition. Variables of cutting conditions are feed per tooth, spindle speed, and axial depth of cut. Cutting conditions to improve surface integrity were investigated by analysis on cutting forces and surface roughness, and machined surface condition.

Study on the Coated Tool Wear Mechanism of High Speed Milling Ni-Base Superalloy GH625

2012 ◽  
Vol 723 ◽  
pp. 311-316
Author(s):  
Wei Wang ◽  
Ming Hai Wang ◽  
Xiao Peng Li
Keyword(s):  
Wear Mechanisms ◽  
High Speed ◽  
High Speed Milling ◽  
Coated Tools ◽  
Coated Tool ◽  
Tool Wear Mechanism ◽  
Cemented Carbide Tools ◽  
Tools Wear ◽  
Coated Cemented Carbide ◽  
Base Superalloy

The experiments of high speed milling Ni-base superalloy GH625 by using two types of the coated cemented carbide tools at home and abroad, using the scanning electron microscopy (SEM) to observe the tools wear morphology, analyzing the worn surface elements distribution by energy spectrum analysis (EDS) and the main wear mechanisms of the tools. The results show that adhesion, oxidation and diffusion are the main wear mechanisms in initiative wearing stage of the domestic coated tools. And the main wear mechanisms of the imported coated tools are adhesion, oxidation, diffusion and coating spallation.

The effect of monolayer TiCN-, AlTiN-, TiAlN-and two layers TiCN + TiN- and AlTiN + TiN-coated cutting tools on tool wear, cutting force, surface roughness and chip morphology during high-speed milling of Ti6Al4V titanium alloy

2016 ◽  
Vol 232 (7) ◽  
pp. 1273-1286 ◽  
Author(s):  
Emel Kuram
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Tool Wear ◽  
Cutting Force ◽  
High Speed ◽  
Cutting Tools ◽  
Chip Morphology ◽  
High Speed Milling ◽  
Ti6al4v Titanium Alloy ◽  
Coated Carbide

Tool coatings can improve the machinability performance of difficult-to-cut materials such as titanium alloys. Therefore, in the current work, high-speed milling of Ti6Al4V titanium alloy was carried out to determine the performance of various coated cutting tools. Five types of coated carbide inserts – monolayer TiCN, AlTiN, TiAlN and two layers TiCN + TiN and AlTiN + TiN, which were deposited by physical vapour deposition – were employed in the experiments. Tool wear, cutting force, surface roughness and chip morphology were evaluated and compared for different coated tools. To understand the tool wear modes and mechanisms, detailed scanning electron microscope analysis combined with energy dispersive X-ray of the worn inserts were conducted. Abrasion, adhesion, chipping and mechanical crack on flank face and coating delamination, adhesion and crater wear on rake face were observed during high-speed milling of Ti6Al4V titanium alloy. In terms of tool wear, the lowest value was obtained with TiCN-coated insert. It was also found that at the beginning of the machining pass TiAlN-coated insert and at the end of machining TiCN-coated insert gave the lowest cutting force and surface roughness values. No change in chip morphology was observed with different coated inserts.

A Study of the Sensitivity of Parameters Affecting Surface Roughness in High Speed Milling Superalloy GH4169

2013 ◽  
Vol 711 ◽  
pp. 143-148 ◽  
Author(s):  
Wei Wei Liu ◽  
Xu Sheng Wan ◽  
Xiao Yan Li ◽  
Yuan Yu ◽  
Dong Fang Wang
Keyword(s):  
Surface Roughness ◽  
High Speed ◽  
Orthogonal Experiment ◽  
Relative Sensitivity ◽  
Depth Of Cut ◽  
High Temperature Alloy ◽  
High Speed Milling ◽  
Genetic Algorithm Method ◽  
Coated Carbide ◽  
Carbide Inserts

The orthogonal experiment is processed for high-speed milling superalloy GH4169 with TiAlN coated carbide inserts. The empirical formula of the surface roughness is acquired by using Genetic Algorithm method. On the basis of this formula, studying the absolute sensitivity and relative sensitivity of surface roughness for milling speed, depth of cut and feed; The results showed that in the process of high-speed milling of high-temperature alloy GH4169, Surface roughness is most sensitive to the change of milling feed; change of milling depth take second place and milling speed is the least sensitive.

Study on High Speed Machining Strategies for Mold

2012 ◽  
Vol 591-593 ◽  
pp. 468-471
Author(s):  
Yong Xia Liu ◽  
Ru Shu Peng ◽  
Qiang Cheng
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
High Speed ◽  
Intake Manifold ◽  
High Speed Machining ◽  
Machining Time ◽  
High Speed Milling ◽  
Tool Paths ◽  
Nc Program ◽  
Machining Strategies

The advantages and current problems for the application of high-speed machining technology in mold manufacturing are discussed. The requirements of mold high-speed machining for tool paths are summarized. Using the software of Cimatron E7.0，the NC program of the outer mold for a car engine’s V8 intake manifold is analyzed and optimized designed. Programming technology and optional of cutters have been introduced in detail. In the high speed milling stages, using the new cutters, the hardened mold can be machined to reach the required size, shape and surface roughness, and the machining time is reduced greatly. The method of making high speed NC template based on the software Cimatron E7.0. is introduced. Using this method, the maching efficiency is improved greatly, and the mold’ s surface quality better.

Sign in / Sign up

Export Citation Format

Share Document