Influence of Combined Hard and Fine Machining on the Surface Properties of Cemented Carbides
Journal Title: Tribology in Industry - Year 2012, Vol 34, Issue 3
Abstract
As a result of recent developments in cold forging cemented carbides are increasingly used as tool materials. Due to their high hardness only electrical discharge machining (EDM) and grinding are suitable for tool machining. The structure of tool surface has significant influence on dominating failure mechanisms wear and fatigue. For improvement of tribological conditions the surface is polished in a finale processing step. The result of hard and fine machining is a specific combination of coarse and fine structure which is determined by processing parameters. The different surface structures lead to a particular tool behavior in forming process. This paper aims to show the influence of combined hard and fine machining on the surface properties of cemented carbides.
Authors and Affiliations
K. Andreas, M. Merklein, U. Engel
Vanadium Alloyed PVD CrAlN Coatings for Friction Reduction in Metal Forming Applications
Hard coatings deposited on forming tools are used to improve the forming process and to increase tool life. The decrease of tool wear and reduction of friction are the main motivations for the development of self-lubrica...
Experts System Based on the Neural Network and Mobile Database in the Field Galvanic Metal Coating
In a modern era of information technologies, everyday changes are more numerous and various. One of those changes is related to the greater use of mobile devices in a decision making processes. They may be used in the fi...
Abrasive Wear Resistance, Mechanical Behaviour, Water Transport Phenomena and Biocorrosion of Epoxy/Femora Biocomposites
Of late, some biological wastes have proven to be reliable candidates in promoting the economic viability of developing polymeric composites. However, the field-proven reliability prediction of such materials during serv...
Effect of Band Contact on the Temperature Distribution for Dry Friction Clutch
In this study, the two dimensional heat conduction problem for the dry friction clutch disc is modeled mathematically analysis and is solved numerically using finite element method, to determine the temperature field whe...
Tribocorrosion Behavior of Niobium-Based Thin Films for Biomedical Applications
The current work presents a comparative study of niobium, niobium carbide, and niobium nitride coatings deposited on AISI 316LVM stainless steel. The investigation was based on the synergy between corrosion and wear; the...