Home
Editorial Committee
Brief Instruction
Back Issues
Instruction to Authors
Submission on line
Contact Us
Chinese

  The journal resolutely  resists all academic misconduct, once found, the paper will be withdrawn immediately.

Title:Composite molding process for automobile front floor and rear body
Authors:  
Unit:  
KeyWords:  
ClassificationCode:TB332
year,vol(issue):pagenumber:2021,46(1):60-64
Abstract:

 For the on-line composite molding process of front floor and rear body for automobile, the multi-element composite molding process of LFT-D high temperature blank and unidirectional carbon fiber prepreg reinforced piece mixed and extruded by the screw machine was explored. The influences of the main process parameters for composite molding (temperature of feeding material, molding pressure, mold closing speed and holding time, etc.) on the forming defects were studied by orthogonal test. Combined with mechanical performance test to screen and determine the optimized forming process combination parameters, the temperature of feeding material for unidirectional carbon fiber prepreg reinforced piece is 100 ℃, the molding pressure is 5000 kN, the speed of closing mold is 10 mm·s-1, and the holding time is 40 s.Comparing the front floor and rear body products with and without unidirectional carbon fiber prepreg reinforcement piece, the tests of impact and tensile mechanical properties were carried out under the same test conditions. The results show that  the longitudinal tensile strength and the impact toughness of LFT-D products with the thickness of 2 mm can be increased by 7 to 8 times by the unidirectional carbor fiber prepreg reinforced piece with the thickness of 1.3 mm.

Funds:
基金项目:国家科技重大专项课题(2018ZX04001026);科技部“科技助力经济2020”重点专项项目
AuthorIntro:
作者简介:孙奋丽(1995-),女,硕士研究生 E-mail:384805944@qq.com 通讯作者:边翊(1976-),男,硕士,研究员 E-mail:bianyi@brimet.ac.cn
Reference:

 [1]李光霁,刘新玲.汽车轻量化技术的研究现状综述[J].材料科学与工艺,2020,(9):1-13.


Li G J, Liu X L. Overview of research status of lightweight automotive technology [J].Materials Science and Technology, 2020,(9):1-13.

[2]刘頔,朱成.碳纤维增强树脂基复合材料用于新能源乘用车车身轻量化及经济性分析[J].科技与创新,2018,(2):5-7.

Liu Z, Zhu C.Carbon fiber reinforced resin matrix composites for new energy passenger vehicle body Lightweight and economic analysis [J].Science, Technology and Innovation,2018,(2):5-7.

[3]王英男,潘利剑,刘国峰.复合材料湿法模压成形工艺参数研究[J].航空制造技术,2018,61(14):56-60.

Wang Y N, Pan L J, Liu G F.Research on technology parameters of composite wet molding [J].Aviation Manufacturing Technology, 2018,61(14):56-60.

[4]方鲲,吴丝竹,马鸣图.汽车轻量化之热塑性复合材料直接模压成形技术的应用[J].现代零部件,2011,(12):44-47.

Fang K, Wu S Z, Ma M T.Application of automotive lightweight thermoplastic composites by direct die forming [J].Modern Components,2011,(12):44-47.

 [5]董卫国.玻璃纤维/聚丙烯纤维增强热塑复合材料的制备及其性能[J].纺织学报,2019,40(3):71-75.

Dong W G.Preparation and properties of glass fiber/polypropylene fiber reinforced thermoplastic composites [J].Chinese Journal of Textiles,2019,40(3):71-75.

[6]王在富.LFT-D长纤维增强热塑性复合材料模压成形工艺研究[D].南京:南京理工大学,2015.

Wang Z F.Research on the Molding Process of LFT-D Long Fiber Reinforced Thermoplastic Composite [D].Nanjing: Nanjing University of Science and Technology,2015.

[7]宋清华,肖军,文立伟,等.模压工艺对玻璃纤维增强聚丙烯复合材料层合板力学性能的影响[J].复合材料学报,2016,33(12):2740-2748.

Song Q H, Xiao J, Wen L W, et al.Effect of molding process on mechanical properties of glass fiber reinforced polypropylene composite laminates [J].Acta Materiae Compositae Sinica,2016,33(12):2740-2748.

[8]GB/T 1447—2005, 纤维增强塑料拉伸性能试验方法[S].

GB/T 1447—2005, Fiber-reinforced plastics composites—Determination of tensile properties[S].

[9]GB/T 1043.1—2008, 塑料简支梁冲击性能的测定第1部分 非仪器化冲击试验[S].

GB/T 1043.1—2008, Plastics—Determination of charpy impact properties—Part 1: Non-instrumented impact test[S].

[10]沃西源,薛芳,李静.复合材料模压成形的工艺特性和影响因素分析[J].高科技纤维与应用,2009,34(6):41-44.

Wo X Y, Xue F, Li J.Analysis of technological characteristics and influencing factors of composite molding [J].High-tech Fibers and Applications,2009,34(6):41-44.

[11]唐荣华,杨旭静,郑娟.长玻璃纤维增强聚丙烯复合材料热模压成形工艺的研究[J].玻璃钢/复合材料,2016,(8):62-67.

Tang R H, Yang X J, Zheng J.Research on hot molding process of long glass fiber reinforced polypropylene composites [J].Glass Fiber Reinforced Plastics/Composites,2016,(8):62-67.

[12]张志莲,江波.基于DOC充填阶段注塑成形工艺参数的优化[J].塑料工业,2006,(2):25-28.

Zhang Z L, Jiang B.Optimization of injection molding process Parameters based on DOC filling stage [J].Plastics Industry,2006,(2):25-28.

[13]王在富,欧阳杰,朱庆鹏,等.LFT-D生产工艺以及复合材料力学性能分析[J].机械制造与自动化,2016,45(2):47-49,80.

Wang Z F, Ouyang J, Zhu Q P, et al.LFT-D production process and mechanical property analysis of composite materials [J].Machinery Manufacturing And Automation,2016,45(2):47-49,80.
Service:
This site has not yet opened Download Service】【Add Favorite
Copyright Forging & Stamping Technology.All rights reserved
 Sponsored by: Beijing Research Institute of Mechanical and Electrical Technology; Society for Technology of Plasticity, CMES
Tel: +86-010-62920652 +86-010-82415085     Fax:+86-010-62920652
Address: No.18 Xueqing Road, Beijing 100083, P. R. China
 E-mail: fst@263.net    dyjsgg@163.com