2-stage progressive-die hot stamping of ultra-high strength steel parts using resistance heating
| Autor: | Yuki Agatsuma, Masato Sakagami, Tomoyoshi Maeno, Ken-ichiro Mori, Masanori Ukai |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Quenching 0209 industrial biotechnology Materials science business.product_category Metallurgy High strength steel 02 engineering and technology General Medicine Hot stamping 01 natural sciences Blank 020901 industrial engineering & automation 0103 physical sciences Ultimate tensile strength Die (manufacturing) Stage (hydrology) Buckle business |
| Zdroj: | Procedia Engineering. 207:681-686 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2017.10.1041 |
| Popis: | A 2-stage progressive-die hot stamping process using partial resistance heating was developed to produce a small-sized ultra-high strength steel parts without additional heat treatments. In the 1st stage, a uncoiled long plate was successively heated by partial resistance heating, and then is simultaneously blanked and punched. The blank is inserted in the blanked plate to be conveyed. In the 2nd stage, the blank is bent and die-quenched. The resistance heating and die quenching operations are synchronised to double the productivity. An automobile seat belt buckle having 1500 MPa in tensile strength was successfully produced without springback. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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