Electrical Discharge Dressing (EDD) of Metal Bonded Diamond Arc Grinding Wheels

2016 ◽  
Vol 1136 ◽  
pp. 412-417 ◽  
Author(s):  
Fei Hu Zhang ◽  
Kai Wang ◽  
Zhong De Liu ◽  
Zhao Kai Ma ◽  
Dian Rong Luan
Keyword(s):  
Electrical Discharge ◽  
Brittle Materials ◽  
Cemented Carbides ◽  
Grinding Wheels ◽  
Electrical Parameters ◽  
Precision Grinding ◽  
Pulse Period ◽  
Hard And Brittle Materials ◽  
Grinding Operations ◽  
Electrical Discharge Dressing

Metal bonded diamond grinding wheels are very important for precision grinding operations of hard and brittle materials especially like ceramics or cemented carbides. But the trueing and dressing problem has affected its wide use. In this paper, a new EDD (Electrical discharge dressing) device was developed for the dressing of metal bonded diamond arc grinding wheels. The EDD experiments were carried out with the new dressing device. The influence of dressing parameters on the dressing efficiency and precision was studied. Experimental results shown that the increase of pulse period and duty period helped improve the dressing efficiency in a certain range. The higher electrical parameters could get better dressing efficiency. The detection results revealed that the error of the arc profile after EDD could reach to around 3μm. mazhaokai2014

Diamond Wheel Dressing: A Comprehensive Review

2017 ◽  
Vol 139 (12) ◽  
Author(s):  
Wenfeng Ding ◽  
Haonan Li ◽  
Liangchi Zhang ◽  
Jiuhua Xu ◽  
Yucan Fu ◽  
...  
Keyword(s):  
Electrical Discharge ◽  
Diamond Wheel ◽  
Grinding Wheels ◽  
Comprehensive Review ◽  
Laser Dressing ◽  
Critical Problems ◽  
The Common ◽  
Abrasive Tools ◽  
Electrical Discharge Dressing ◽  
Diamond Abrasive

This paper provides a comprehensive review on the dressing techniques of diamond grinding wheels. The common techniques with different tools were discussed in detail, which included the bonded SiC and diamond abrasive tools, loose abrasives, soft-elastic abrasive belts, and profiled diamond wheels. Meanwhile, laser dressing, electrical discharge dressing (EDD), and electrolytic in-process dressing (ELID) were also addressed. Some critical problems in the above dressing techniques were then analyzed and summarized for further investigation.

scholarly journals Micro-grooving of brittle materials using textured diamond grinding wheels shaped by an integrated nanosecond laser system

2021 ◽  
Author(s):  
Zongchao Geng ◽  
Zhen Tong ◽  
Wenbin Zhong ◽  
Guoqin Huang ◽  
Changcai Cui ◽  
...  
Keyword(s):  
Laser System ◽  
Brittle Materials ◽  
Research Progress ◽  
Nanosecond Laser ◽  
Grinding Wheels ◽  
Diamond Grinding ◽  
Hard And Brittle Materials ◽  
Micro Grooving ◽  
Offset Compensation ◽  
High Flexibility

Abstract The freeform surfaces including both the aspherical and prismatic concave/convex have been widely utilized in optical, electronical, and biomedical areas. Most recently, it is reported that grinding with structured wheels provides new possibility to generate patterns on hard and brittle materials. This paper reports the latest research progress on micro-grooving glass ceramic using laser structured bronze bond diamond grinding wheels. A nanosecond pulse laser is firstly integrated into an ultra-precision machine tool and used for the in-line conditioning of super abrasive grinding wheels, i.e. truing, dressing, and profiling/texturing. Meanwhile, an offset compensation method, considering the shifting depth of focus (DoF) at different laser irradiation position, is proposed to accurately generate various profiles on the periphery of the grinding wheels. Three types of patterns (riblets, grooves, and pillars) are successfully fabricated on the ceramic substrate using the laser textured grinding wheels. The results indicate that the integrated laser system offers high flexibility and accuracy in shaping super abrasive grinding wheels, and the grinding using textured grinding wheels provide a promising solution to generate functional structures on hard and brittle materials.

Technological Possibilities of Low-Temperature Precision Grinding Process when Machining Hard and Brittle Materials

2002 ◽  
Vol 223 ◽  
pp. 149-156 ◽  
Author(s):  
B.I. Batiashvili ◽  
D.S. Butskhrikidze ◽  
G.A. Mamulashvili ◽  
R.S. Turmanidze ◽  
Karl Kromp ◽  
...  
Keyword(s):  
Low Temperature ◽  
Brittle Materials ◽  
Grinding Process ◽  
Precision Grinding ◽  
Hard And Brittle Materials

scholarly journals Special wire guide for on-machine wire electrical discharge dressing of metal bonded grinding wheels

CIRP Annals ◽  
2010 ◽  
Vol 59 (1) ◽  
pp. 227-230 ◽  
Author(s):  
E. Weingärtner ◽  
S. Jaumann ◽  
F. Kuster ◽  
M. Boccadoro
Keyword(s):  
Electrical Discharge ◽  
Grinding Wheels ◽  
Electrical Discharge Dressing

THE SIGNIFICANCE OF CONTINUOUS DRESSING IN PRECISION GRINDING OF HARD AND BRITTLE MATERIALS

2001 ◽  
Vol 16 (3) ◽  
pp. 341-351 ◽  
Author(s):  
A. G. Mamalis ◽  
J. Kundrák ◽  
K. Gyáni
Keyword(s):  
Brittle Materials ◽  
Precision Grinding ◽  
Hard And Brittle Materials

Development of PMAC-Based Multifunctional Combined CNC Machine

2004 ◽  
Vol 471-472 ◽  
pp. 830-833
Author(s):  
Meng You Huo ◽  
Jin Quan Xu ◽  
Jian Hua Zhang ◽  
Xing Ai ◽  
Yu Jing Hu
Keyword(s):  
Electrical Discharge ◽  
High Speed ◽  
Electrical Discharge Machining ◽  
Brittle Materials ◽  
Work Piece ◽  
Ultrasonic Machining ◽  
Cnc Machine ◽  
Wide Range ◽  
High Speed Grinding ◽  
Hard And Brittle Materials

This paper presents a PMAC-based combined CNC machine that integrates technologies of ultrasonic machining, electrical discharge machining and high speed grinding. As a multifunctional machine, it can provide diverse machining methods for different materials. For hard and brittle materials, it can conduct ultrasonic machining and high-speed grinding respectively or in a combined form; for conductive hard and brittle materials, electrical discharge machining with or without ultrasonic vibration could be implemented. Driven by AC servomotors, the mechanical structure of the vertical machine is mainly composed of a cross workbench for work piece handling, and a spindle head for tool feeding or high speed rotating. Besides those mentioned above, the system management program, the pulse power generator as well as the ultrasonic generator are also analyzed in this paper. Experimental results show that this machine has a wide range of application indeed and is suitable for various materials processing.

Sign in / Sign up

Export Citation Format

Share Document