Nuraini, Aziz and S. N., Aqida (2013) Optimization of quenching process in hot press forming of 22MnB5 steel for high strength properties for publication in. In: 2nd International Conference on Mechanical Engineering Research (ICMER2013) , 1-4 July 2013 , Bukit Gambang Resort City, Kuantan, Pahang. pp. 1-6., 50 (1). ISSN 1757-899X
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Abstract
This paper presents hot press forming of 22MnB5 steel blanks for high strength automotive components. The hot press forming was performed using Schenck press PEZ0673 machine with maximum press force of 1000 kN. Samples were square 22MnB5 blanks, of 50 × 60 mm dimension. A high temperature furnace was used to heat up the blanks to austenite temperature of 950°C. Samples were held at the austenite temperature prior to forming and quenching process. Three independent controlled parameters were cooling water temperature, press holding time and flow rate of water. Pressed samples were characterized for metallographic study, hardness properties and tensile properties. Metallographic study was conducted using Meiji optical microscope. Hardness was measured using Vickers indenter with load 1000gf. From metallographic study, the hot pressed 22MnB5 boron steel samples produced lath martensitic microstructure. Hardness of hot pressed samples increased with decreasing cooling time. The yield strength and the ultimate tensile strength of samples after hot forming were between 1546 and 1923 N/mm2. These findings were important to design tailored ultra-high strength in automotive components at different process parameter settings.
| Item Type: | Conference or Workshop Item (Lecture) |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Automotive component; Controlled parameter; Cooling water temperature; High temperature furnaces |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Mechanical Engineering |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 12 Nov 2019 04:00 |
| Last Modified: | 12 Nov 2019 04:00 |
| URI: | http://umpir.ump.edu.my/id/eprint/25346 |
| Download Statistic: | View Download Statistics |
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