Enhancement of shape accuracy and die quenchability of ultra-high strength steel hollow products in hot stamping of tubes using eco-friendly fiber-reinforced ice mandrel

A hot stamping process of quenchable steel tubes using a mandrel reinforced with eco-friendly fibers was developed to produce ultra-high strength steel hollow parts having enhanced lightweighting and crashworthiness. High internal pressure was generated to improve the die quenchability and shape acc...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2023-06, Vol.126 (9-10), p.4369-4384
Main Authors: Talebi-Anaraki, Ali, Maeno, Tomoyoshi, Matsubara, Yuta, Ikeda, Ryohei, Mori, Ken-ichiro
Format: Article
Language:English
Subjects:
Accuracy
CAE) and Design
Compressive strength
Computer-Aided Engineering (CAD
Crashworthiness
Dies
Engineering
Fiber reinforced materials
Fiber reinforcement
High strength steel
High strength steels
Hot stamping
Impact strength
Industrial and Production Engineering
Internal pressure
Mechanical Engineering
Media Management
Original Article
Sawdust
Steel tubes
Vegetable fibers
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Summary:A hot stamping process of quenchable steel tubes using a mandrel reinforced with eco-friendly fibers was developed to produce ultra-high strength steel hollow parts having enhanced lightweighting and crashworthiness. High internal pressure was generated to improve the die quenchability and shape accuracy of the formed parts by the fiber reinforcement. Wood sawdust, shredded copy paper, and plant fiber made of recycled toilet paper were chosen as the fibers, and not only the strength was evaluated from a uniaxial compression test but also the melting behavior of the mandrel was examined. The influence of the fiber reinforcement on the shape accuracy and die quenchability of hot-stamped parts was investigated. The generated internal pressure with the fiber-reinforced ice mandrel was higher than that with the pure ice mandrel without the reinforcement, and thus, the shape accuracy and die quenchability of hot-stamped parts were significantly improved even for a comparatively small change in internal volume of tubes.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-023-11160-3