Influence of Tool Shape on Cutting Characteristics in Ultra-Precision Cutting of Al-Mg Alloys

2016 ◽  
Vol 1136 ◽  
pp. 178-183 ◽  
Author(s):  
Tomohiro Iida ◽  
Yukio Maeda ◽  
Daisuke Hirase ◽  
Tatsuo Motoyoshi ◽  
Hideaki Tanaka ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloys ◽  
Surface Defects ◽  
Mg Alloys ◽  
Machined Surface ◽  
Tool Shape ◽  
Machined Surface Roughness ◽  
Ultra Precision ◽  
Geometric Surface ◽  
Al Mg Alloys

In this study, we investigated ultra-precision cutting technology of aluminum alloys for polygon mirrors made of Al-Mg Alloys. It is necessary to improve the geometric surface roughness achieved in the mirror cutting of Al-Mg alloys and remove tear-out marks and scratch marks that occur during the cutting process. Therefore, we investigated the cutting edge shape using 2 types of straight diamond tools and 2 types of round tools to decrease the surface defects in the ultra-precision cutting of Al-Mg alloys. As a result, a double-facet tool can achieved a good machined surface roughness and reduce the cutting force and the scratch marks compared with other tools.

Research on ELID Grinding Efficient Surface Forming Mechanism of SiCp/Al Composites

2014 ◽  
Vol 1027 ◽  
pp. 107-110
Author(s):  
Jia Liang Guan ◽  
Lei Zhu ◽  
Ling Chen ◽  
Xin Qiang Ma ◽  
Xiao Hui Zhang
Keyword(s):  
Surface Roughness ◽  
Surface Defects ◽  
Volume Fraction ◽  
Removal Mechanism ◽  
Precision Grinding ◽  
Machined Surface ◽  
Forming Mechanism ◽  
Elid Grinding ◽  
Machined Surface Roughness

The electrolytic in-process dressing (ELID) grinding technology was adopted for precision grinding experiments of volume fraction of 40% of SiCp/Al composites, obtaining the machined surface roughness of Ra0.030μm. Studying the forming mechanism of processed surface, analyzing several typical grinding surface defects, summarizing the grinding characteristics and removal mechanism of SiCp/Al composites.

Research on ELID Ultra-Precision Grinding Performance of SiCp/Al Composites

2014 ◽  
Vol 614 ◽  
pp. 75-78
Author(s):  
Jia Liang Guan ◽  
Lei Zhu ◽  
Ling Chen ◽  
Xin Qiang Ma ◽  
Xiao Hui Zhang
Keyword(s):  
Surface Roughness ◽  
Cast Iron ◽  
Rotation Speed ◽  
Grinding Wheel ◽  
Feed Speed ◽  
Precision Grinding ◽  
Machined Surface ◽  
Elid Grinding ◽  
Machined Surface Roughness ◽  
Ultra Precision

The electrolytic in-process dressing (ELID) grinding technology was adopted for ultra-precision grinding experiments of SiCp/Al composites; the machined surface roughness can obtain Ra0.030μm. The experiments show that: with the grinding wheel rotation speed of 1500r/min, the grinding depth of 0.1μm, and feed speed of 2m/min and using W5 cast iron bonded diamond grinding wheel, the grinding effect can achieve optimal.

Experimental Characteristics of Aluminum Alloys in Dry End Milling

2009 ◽  
Vol 407-408 ◽  
pp. 714-717 ◽  
Author(s):  
Yoshio Mizugaki ◽  
Kazuki Takafuji ◽  
Koichi Kikkawa
Keyword(s):  
Surface Roughness ◽  
Aluminum Alloys ◽  
End Milling ◽  
Cutting Speed ◽  
High Speed Steel ◽  
Maximum Height ◽  
Machining Error ◽  
Machined Surface ◽  
Side Milling ◽  
Machined Surface Roughness

This paper describes the cutting characteristics of aluminum alloys in dry end milling experimentally. The tested materials are A1050, A2017, A2024, A5025 and A7075. The cutter is a flat end mill of Co-cemented High Speed Steel with the diameter of 20 mm. Through the experimental results of side milling, the following three aspects have been found out. Firstly, as to the machining error, A1050 showed smaller machining error than 15 μm in the cutting speed rage from 62.8 m/min to 251.3 m/min. Other Aluminum alloys showed greater values. Secondly, as to the cutting force, those of aluminum alloys except A2017 were generally proportional to their material hardness. The cutting forces of A1050 and A5052 were constant over the whole range of cutting speed. Thirdly, as to the machined surface roughness, A7075 showed the smallest surface roughness among the all materials with its arithmetical mean roughness Ra under 0. 2 µm and with its maximum height of profile Rz under 1 μm. The machined surface roughness of A2017 varied widely. Through the visual inspection of machined surface, A2017 and A2024 showed picked surface as generated by a built-up edge. This document explains and demonstrates how to prepare your camera-ready manuscript for Trans Tech Publications. The best is to read these instructions and follow the outline of this text. The text area for your manuscript must be 17 cm wide and 25 cm high (6.7 and 9.8 inches, resp.). Do not place any text outside this area. Use good quality, white paper of approximately 21 x 29 cm or 8 x 11 inches (please do not change the document setting from A4 to letter). Your manuscript will be reduced by approximately 20% by the publisher. Please keep this in mind when designing your figures and tables etc.

Research on ELID Grinding Performance of GCr15 Steel

2013 ◽  
Vol 797 ◽  
pp. 740-745
Author(s):  
Jia Liang Guan ◽  
Xin Qiang Ma ◽  
Xiao Hui Zhang ◽  
Li Li Zhu ◽  
Zhi Wei Wang
Keyword(s):  
Surface Roughness ◽  
Bearing Steel ◽  
Precision Grinding ◽  
Machined Surface ◽  
Elid Grinding ◽  
Peripheral Velocity ◽  
Gcr15 Bearing Steel ◽  
Machined Surface Roughness ◽  
Ultra Precision ◽  
Main Factors

The electrolytic in-process dressing (ELID) grinding technology was adopted for ultra-precision grinding experiments of GCr15 bearing steel. The experiments show that: grinding depth, electrolysis gap and wheel peripheral velocity are the main factors to affect the surface quality. With the electrolysis gap of 0.5mm, the grinding depth of 0.1μm, and the wheel peripheral velocity of 18m/s, the grinding effect can achieve optimal and the machined surface roughness can obtain Ra0.006μm.

scholarly journals Experimental Research on the Surface Quality of Milling Contour Bevel Gears

2021 ◽  
Author(s):  
Mingyang Wu ◽  
Jianyu Zhang ◽  
Chunjie Ma ◽  
Yali Zhang ◽  
Yaonan Cheng
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Surface Defects ◽  
Low Noise ◽  
Tooth Surface ◽  
Machining Accuracy ◽  
Machined Surface ◽  
Bevel Gears ◽  
Machined Surface Roughness

Abstract Contour bevel gears have the advantages of high coincidence, low noise and large bearing capacity, which are widely used in automobile manufacturing, shipbuilding and construction machinery. However, the quality of the tooth surface has a significant impact on the transmission accuracy of the gear, so it is of great significance to optimize the surface quality of the contour bevel gear. This paper firstly analyzes the formation process of machined surface roughness of contour bevel gears on the basis of generating machining method, and dry milling experiments of contour bevel gears are conducted to analyze the effects of cutting speed and feed rate on the machined surface roughness and surface topography of the workpiece. Then, the surface defects on the machined surface of the workpiece are studied by SEM, and the causes of the surface defects are analyzed by EDS. After that, XRD is used to compare the microscopic grains of the machined surface and the substrate material for diffraction peak analysis, and the effect of cutting parameters on the microhardness of the workpiece machined surface is investigated by work hardening experiment. The research results are of great significant for improving the machining accuracy of contour bevel gears, reducing friction losses and improving transmission efficiency.

Theoretical and Experimental Study on the Surface Roughness of Quenched Steel in Ultrasonic Turning with PCBN Tool

2010 ◽  
Vol 42 ◽  
pp. 1-4 ◽  
Author(s):  
Feng Jiao ◽  
Jin Hui Jian ◽  
Xiang Liu
Keyword(s):  
Experimental Study ◽  
Surface Roughness ◽  
Theoretical Analysis ◽  
Evaluation Index ◽  
Machined Surface ◽  
Machined Surface Quality ◽  
Machined Surface Roughness ◽  
Turning Mechanism ◽  
Quenched Steel ◽  
Geometric Surface

Surface roughness is an important evaluation index of the machined surface quality. The ultrasonic turning mechanism was described in detail and the mechanism reducing surface roughness in ultrasonic vibration turning was obtained in this paper. Meanwhile, ultrasonic turning experiments were carried out to verify the theoretical analysis. Theoretical and experimental research results show that machined surface roughness of quenched steel in ultrasonic turning is very close to geometric surface roughness, resulting in smaller surface roughness than that in ordinary turning.

Anticorrosion property enhancement of Al–Li alloy 2A97 by lowering machined surface roughness

2020 ◽  
Vol 71 (12) ◽  
pp. 1980-1988 ◽  
Author(s):  
Jintao Niu ◽  
Zhanqiang Liu ◽  
Guijie Wang ◽  
Weimin Huang ◽  
Ying Xu
Keyword(s):  
Surface Roughness ◽  
Anticorrosion Property ◽  
Machined Surface ◽  
Machined Surface Roughness

Experimental Investigation on Surface Roughness in Precision Cutting Ti6Al4V Alloy Using Diamond Tools

2014 ◽  
Vol 800-801 ◽  
pp. 576-579
Author(s):  
Lin Hua Hu ◽  
Ming Zhou ◽  
Yu Liang Zhang
Keyword(s):  
Surface Roughness ◽  
Cutting Speed ◽  
Polycrystalline Diamond ◽  
Cutting Parameters ◽  
Limited Range ◽  
Nose Radius ◽  
Machined Surface ◽  
Machined Surface Roughness ◽  
Titanium Alloy Ti6al4v ◽  
Pcd Tools

In this work, cutting experiments were carried out on titanium alloy Ti6Al4V by using polycrystalline diamond (PCD) tools to investigate the effects of the tool geometries and cutting parameters on machined surface roughness. Experimental results show machined surface roughness decreases with increases in the flank angle, tool nose radius and cutting speed within a limited range respectively, and begins to increase as the factors reaches to certain values respectively. And machined surface roughness decreases with increases in feed rate and cutting depth respectively.

Sign in / Sign up

Export Citation Format

Share Document