High Efficiency Deep Grinding (HEDG)--Theory and Practice
Author : John A. Webster
Publisher :
Page : 16 pages
File Size : 37,36 MB
Release : 2000
Category :
ISBN :
Author : John A. Webster
Publisher :
Page : 16 pages
File Size : 37,36 MB
Release : 2000
Category :
ISBN :
Author : Taghi Tawakoli
Publisher : Wiley
Page : 154 pages
File Size : 26,98 MB
Release : 1993-04-15
Category : Technology & Engineering
ISBN : 9780852988206
A book which describes and discusses the technological requirements and theoretical principles of high-efficiency deep grinding. The role of machine settings and their influence on the process is examined and explained. The techniques and findings presented here are based on experience gained in a wide range of industrial and research projects.
Author : G. Werner
Publisher :
Page : 17 pages
File Size : 23,83 MB
Release : 1988
Category : Grinding and polishing
ISBN :
Author : S. JAFAR. TAVAKKOLI
Publisher :
Page : 18 pages
File Size : 46,90 MB
Release : 2000
Category :
ISBN :
Author : DR.-ING. TAGHI. TAWAKOLI
Publisher :
Page : 16 pages
File Size : 18,74 MB
Release : 2000
Category :
ISBN :
Author : T. Tawakoli
Publisher :
Page : 14 pages
File Size : 44,30 MB
Release : 1990
Category : Abrasives
ISBN :
Author :
Publisher :
Page : pages
File Size : 50,33 MB
Release : 2010
Category :
ISBN :
This research considers the temperatures generated in the workpiece during profile and cylindrical traverse grinding in the High Efficiency Deep Grinding (HEDG) regime. The HEDG regime takes large depths of cut at high wheel and workpiece speeds to create a highly efficient material removal process. This aggressive processing generates high temperatures in the contact zone between the wheel and workpiece. However, the beneficial contact angle and the rapid removal of the heated wheel - workpiece contact zone results in low temperatures in the finished surface. Temperatures in the ground surface can be predicted with knowledge of the specific grinding energy and the grinding parameters used. Specific grinding energies recorded at high specific material removal rates demonstrated a constant value of specific grinding energy dependent on cutting and contact conditions, improving accuracy of the predictive model. This was combined with a new approach to burn threshold modelling, which demonstrated an improved division of damaged and undamaged surfaces. Cutting and contact conditions in the grinding profile vary dependent on their position. This thesis shows how temperatures vary with location and estimates the partitioning of the heat flux to the regions of the grinding profile. This suggested a constant partitioning of energy to each of the three surfaces considered independently of specific material removal rates. Further a potential link was shown between the surface and the sidewall of the grinding profile, which allows temperatures in a secondary surface to be predicted given knowledge of that in the primary. Finally, the work has demonstrated the feasibility of the Superabrasive Turning process. Using small values of feed per turn and high workpiece feedrates promoted high values of removal rate with low depths of thermal penetration in the as ground surface. Thus the process has become viable for high speed cylindrical traverse grinding.
Author : Iain Johnstone
Publisher :
Page : pages
File Size : 20,27 MB
Release : 2002
Category :
ISBN :
Author : Andrew John Bell
Publisher :
Page : pages
File Size : 28,89 MB
Release : 2009
Category :
ISBN :
This research considers the temperatures generated in the workpiece during profile and cylindrical traverse grinding in the High Efficiency Deep Grinding (HEDG) regime. The HEDG regime takes large depths of cut at high wheel and workpiece speeds to create a highly efficient material removal process. This aggressive processing generates high temperatures in the contact zone between the wheel and workpiece. However, the beneficial contact angle and the rapid removal of the heated wheel? workpiece contact zone results in low temperatures in the finished surface. Temperatures in the ground surface can be predicted with knowledge of the specific grinding energy and the grinding parameters used. Specific grinding energies recorded at high specific material removal rates demonstrated a constant value of specific grinding energy dependent on cutting and contact conditions, improving accuracy of the predictive model. This was combined with a new approach to burn threshold modelling, which demonstrated an improved division of damaged and undamaged surfaces. Cutting and contact conditions in the grinding profile vary dependent on their position. This thesis shows how temperatures vary with location and estimates the partitioning of the heat flux to the regions of the grinding profile. This suggested a constant partitioning of energy to each of the three surfaces considered independently of specific material removal rates. Further a potential link was shown between the surface and the sidewall of the grinding profile, which allows temperatures in a secondary surface to be predicted given knowledge of that in the primary. Finally, the work has demonstrated the feasibility of the Superabrasive Turning process. Using small values of feed per turn and high workpiece feedrates promoted high values of removal rate with low depths of thermal penetration in the as ground surface. Thus the process has become viable for high speed cylindrical traverse grinding.
Author : Veronique Viget
Publisher :
Page : 119 pages
File Size : 21,69 MB
Release : 2001
Category :
ISBN :