International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
www.irjet.net
Finite Element Analysis and Optimization of Automotive Seat Floor Mounting Bracket in Metal Forming Using LS-DYNA Mayur Mane1, Dr. Somnath Kadhane2 1ME
Design Engineering Student at SVPM’s College of Engineering Malegaon, Maharashtra, India Professor, Mechanical Dept. of SVPM’s College of Engineering, Malegaon, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------2Associate
Abstract - In this research, variables such as blank holder
processes. In case of seat floor mounting bracket, it has to go through two processes namely deep drawing and stretching.
force, friction coefficient and die shoulder radius in sheet forming process of automotive seat floor mounting bracket were discussed together with its formability. Defects occurring during the forming process are emphasized using CAE tool explicit dynamic software LS-DYNA. The solutions to such defect problems will also be given along with various methods used for the analysis and optimization for defect free process are explained.
In order to get qualified forming of automotive seat floor mounting bracket to meet Customer requirements, multiple modifying and repeated debugging are required for forming die, forming process, technological parameters, and so forth, while “trial and error” method is used in the traditional way for repeated testing, which not only require a longer production cycle, but also require high production costs.
Key Words: Automotive seat floor mounting bracket, Metal forming, CAE, LS-DYNA
With the continuous development of numerical analysis technology, plastic forming theory, stamping technology, and computer technology, CAE (computer aided engineering) technology is gradually applied in forming process and die design process for automotive sheet metal parts; CAE related software are more and more widely used in die debugging process. The formability and possible defects of parts can be analyzed through the simulation, which provide the reliable basis for die debugging, so that it can reduce the die manufacturing problems, shorten the production cycle, save production costs, and offer more economic benefits for enterprises.
1. INTRODUCTION Sheet metal forming (SMF) is a process where pieces of sheet metal are modified to its geometry rather than removing any material. In sheet metal forming process where a material, knows as the blank is formed by stretching it between a punch and a die.
Fig -1: Sheet metal forming [2]
1.1 Automotive Seat Floor Mounting Bracket
Seat Floor Mounting Bracket
Seat floor mounting bracket is used to mount the seating system in the vehicle as shown in figure 2. These brackets support to the seating system and hold the seat rigidly in place and also prevent it from shifting around. Automotive seat floor mounting bracket has a complex shape. The forming process of the automobile parts generally include drawing, trimming, stamping, shaping, flanging, and other
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Fig -2: Frame of a car seat
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