A study on the shape correction for stamped product of high strength steels by laser irradiation
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: A study on the shape correction for stamped product of high strength steels by laser irradiation
A study on the shape correction for stamped product of high strength steels by laser irradiation
M.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAM A study on the shape correction for stamped product of high strength steels by laser irradiation M UNIVERSITYDepartment of Mechanical EngineeringMechanical Engineering MajorAdvisor: Prof. Hyun Bo ShimABSTRACTTn automotive industries, use of high strength steels (HSS) is rapidly increasing since high strength steels can meet the requirement of automotives, such as light weight of the structure, A study on the shape correction for stamped product of high strength steels by laser irradiation low fuel consumption, and safety of passengers, etc. Most automotive parts, including bumper part, can be manufactured by sheet metal forming, where sA study on the shape correction for stamped product of high strength steels by laser irradiation
tamping process is the1typical technology. The stamping of high strength steels makes difficult to develop (he stamping dies due to low formability anM.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAM A study on the shape correction for stamped product of high strength steels by laser irradiation ional steels. Besides, (he basic purpose of manufacturing is to create the products having the severe competition in the automotive market. Therefore, shortening the period of product development and reducing cost arc strongly demanded.In order to meet both the requirement of automotive industries a A study on the shape correction for stamped product of high strength steels by laser irradiation nd the difficulties of stamping processes, a new heuristic method which is combined use of stamping and laser irradiation has been proposed in this stA study on the shape correction for stamped product of high strength steels by laser irradiation
udy.Io verify the method, corresponding experiment and a scries of numerical simulations, irradiation process, stamping process and springback were caM.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAM A study on the shape correction for stamped product of high strength steels by laser irradiation efinitely obtained. Moreover, the condition of laser irradiation in order to achieve the desirable bending angles can be derived based on the simulation analysis of laser irradiation using flat plate. Applying the laser irradiation patterns, the springback angles were significantly compensated withi A study on the shape correction for stamped product of high strength steels by laser irradiation n acceptable tolerance.This work still remains some things being done in the fixture such as finding the real temperature dependent materials of highA study on the shape correction for stamped product of high strength steels by laser irradiation
strength steels, applying laser irradiation to correct springbuck in the real bumper parts, eel.2TABLE OF CONTENTS1Introduction1.1Problem statement...M.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAM A study on the shape correction for stamped product of high strength steels by laser irradiation ............51.4Scope of Study............................................82Simulation Analysis2.1Coupled thermo-mechanical analysis in LS-DYNA............102.2Model development for laser bending of flat sheet........112.2.1Geometry............................................112.2.2Mesh development. A study on the shape correction for stamped product of high strength steels by laser irradiation ...................................112.2.3High strength Steel material properties.............122.2.4Laser beam heat source...........................A study on the shape correction for stamped product of high strength steels by laser irradiation
...132.2.5Thermal boundary conditions.........................142.3Temperature distributions................................152.4Effects of sizes of sM.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAM A study on the shape correction for stamped product of high strength steels by laser irradiation ..........183Laser Irradiation Experiment of Elat PlateM.S. ThesisA STUDY ON THE SHAPE CORRECTION FOR STAMPEDPRODUCT OF HIGH STRENGTH STEELS BY LASERIRRADIATIONThanh Hili NguyenThe Graduate School YEUNGNAMGọi ngay
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