voestapine eifeler Coatings is the leading provider of the highest quality PVD coatings in North America. With the demands put on the forging industry of today, taking advantage of eifeler PVD coatings will go a long way in satisfying those demands. Duplex-TIGRAL – A proven AlCrTiN high temperature coating voestalpine eifeler Coatings developed this high performance PVD coating for very high resistance against oxidation and abrasion. Benefits are: high hardness and wear resistance, superior abrasion and erosion resistance, corrosion resistance from alloying attack, high oxidation temperature and thermal stability and improved coefficient of friction. When an increase in production, extended tool life, less down time, and higher tool performance are requirements, then voestalpine eifeler Coatings is your solution provider.
CROSAL – The newest generation of AlCrN coating
This innovative AlCrN-based high-performance coating was specially developed for use at high temperatures, up to 2012°F (1100°C). Locally high to very high temperatures occur in many forging processes. Our innovative CROSAL® coating meets all the necessary demands to the highest degree: high hot hardness, high resistance to oxidation and high adhesive strength.
In hot forging a heated up billet is pressed between a die set to a nearly finished product. Large numbers of solid metal parts are produced in aluminum alloys, copper alloys, steel or superalloys where irregular shapes need to be combined with good mechanical properties. The main methods of impression die forging are drop or hammer forging and press forging.
Typical die failures
Hot forging dies are exposed to severe mechanical and thermal cyclic loading, which puts high demands on the die material. Thus, there are some phenomena which restrict die life.
Die material properties
The properties profile required for tool steel in forging dies depends to some extent on the type of forging operation, on the work material and on the size of the part, depth of impression etc. However, a number of general characteristics will always be required in all forging operations. The particular die damage mechanism to which resistance is conferred by the various properties are given in parentheses.