Search for dissertations about: "Adhesive wear"
Showing result 1 - 5 of 31 swedish dissertations containing the words Adhesive wear.
-
1. Wear mechanisms in sheet metal forming : Effects of tool microstructure, adhesion and temperature
Abstract : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of lubricants, in combination with the introduction of high and ultrahigh-strength sheet materials, continuously increases the demands on the forming tools. READ MORE
-
2. Adhesive wear testing and modelling of tool steels sliding against sheet metals
Abstract : Sheet metal forming is a manufacturing method used because of its versatility. Sheets are plastically deformed by a tool to create a product. A tool is expected to last for several 100,000 forming operations and efforts are made to optimize the tools. A common type of wear referred to as galling is the adhesion of sheet material to the tools. READ MORE
-
3. A study on wear characteristics of high strength steels under sliding contact
Abstract : In the last decades, significant improvements regarding the design, materials and technology of rock drills have been made. Likewise, in sheet metal forming, forming tools experience very high contact pressures when processing high strength steel sheets. READ MORE
-
4. Influence of Microstructure in Machining of Nickel and Nickel-Iron Based Alloys
Abstract : Superalloys are used in applications such as turbines, steam power plants and nuclear power systems in components that require good high temperature properties and/or corrosion resistance. They are classified as difficult-to-cut materials and hence, from a sustainable production point of view, tool wear and tool life are major factors when machining these alloys. READ MORE
-
5. The early stage of galling
Abstract : In sheet metal forming (SMF) of materials such as stainless steels there is a major problem with transfer and accumulation of sheet material to the metal forming tool surface. The problem is known as galling; a kind of severe adhesive wear, which results in severe scratching of produced parts. READ MORE