Numerical Model of Heat Transfer Coefficient in Hot Stamping Process

Mohd Ali Hanafiah, Shaharudin and Zahari, Taha (2017) Numerical Model of Heat Transfer Coefficient in Hot Stamping Process. Applied Mathematics & Information Sciences, 11 (2). pp. 401-406. ISSN 1935-0090 (Print); 2325-0399 (Online) . (Published)

	PDF Numerical Model of Heat Transfer Coefficient in Hot Stamping Process.pdf - Published Version Restricted to Repository staff only Download (346kB) | Request a copy
Preview	PDF Numerical Model of Heat Transfer Coefficient in Hot Stamping Process 1.pdf - Published Version Download (69kB) | Preview

Abstract

Due to the demands to reducing the gas emissions, energy saving and producing safer vehicles have driven the development of ultra high strength steel. Since the mechanical properties of ultra high strength steel are remarkably high, it has become a major setback for forming process and this has led lead to the development of special forming technique for ultra high strength steel called Hot Stamping. In hot stamping, the ultra high strength steel blank is heated to its austenization temperature of about 900 - 950 ◦C inside the furnace. Then, the heated blank is transferred to the tool where forming takes place and simultaneously quench the blank inside the tool. As the tool dwells, the microstructure of the blank becomes fully martensite thus giving the final part strength of up to 1500 MPa. In order to have a better understanding of the Hot Stamping Process, a numerical model of heat transfer need to be developed to simulate the temperature changes of the blank as well as validate the heat transfer coefficient (HTC) of the blank and tool contact surface as a function of distance and time. The numerical model is based on the heat transfer at the contact surface between the ultra high strength steel blank (Boron Manganese Steel) and the tool made of Tool Steel (SKD11).

Item Type:	Article
Additional Information:	Indexed in Scopus
Uncontrolled Keywords:	Numerical Model of Heat Transfer; Hot Stamping Process; Ultra High Strength Steel
Subjects:	T Technology > TS Manufactures
Faculty/Division:	Faculty of Manufacturing Engineering
Depositing User:	Mrs. Neng Sury Sulaiman
Date Deposited:	28 Nov 2017 06:41
Last Modified:	07 Mar 2018 00:16
URI:	http://umpir.ump.edu.my/id/eprint/18567
Download Statistic:	View Download Statistics

Actions (login required)

View Item