• S. Srinivasan M.E.
• G.Manikandan M.E
• V.Seenivasa Perumal M.E.

In this review paper, some of the commercially available die materials were compared based on their hardness data available in material data sheets. These materials are used for hot and warm forging in mechanical presses. This paper also includes the results of a study by ERC/NSM, in which wear and plastic deformation on warm forging dies was successfully estimated by using Finite Element Analysis. Some of the studies on ceramic die materials presented in literature were reviewed. Surface treatment techniques such as nitriding and weld overlays, as well as ceramic coatings, are also discussed. In hot and warm forging, mainly hot work die steels are used due to their ability to retain their hardness at elevated temperatures with sufficient strength and toughness to withstand the stresses that are imposed during forging. There have also been some cost effective applications of other materials such as ceramics, carbides and super alloys although these applications are limited due to design restrictions and costs.Hot working die steels used at temperatures between 310 °C and 650 °C contain additions of chromium, tungsten, vanadium and molybdenum to provide deep hardening characteristics and resistance to abrasion and thermal softening at high temperatures. Molybdenum increases resistance to thermal softening, vanadium improves wear and thermal fatigue characteristics. Tungsten alloy steels are not resistant to thermal shock and must not be cooled intermittently with water.

OPTIMIZATION OF TOOL LIFE FOR CLOSED TYPE FORGING TOOL

"OPTIMIZATION OF TOOL LIFE FOR CLOSED TYPE FORGING TOOL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.1061-1067, June 2019, Available :http://www.jetir.org/papers/JETIR1907454.pdf

"OPTIMIZATION OF TOOL LIFE FOR CLOSED TYPE FORGING TOOL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp1061-1067, June 2019, Available at : http://www.jetir.org/papers/JETIR1907454.pdf