Numerical Simulation on the Laser Bending of Thin Wall Tubes

Nan Hai Hao; Yu Ling Gai

doi:10.4028/www.scientific.net/KEM.460-461.798

Paper Titles

Color and Texture Classification of Green Tea Using Least Squares Support Vector Machine (LSSVM)
p.774

Fast Mesh Segmentation for CAD Models
p.780

Next Day Load Forecasting Using Local Temperature Sensitive Information
p.786

Realization of Multi-User’s Connection Technique in Virtual Scene Base on LAN
p.792

Numerical Simulation on the Laser Bending of Thin Wall Tubes
p.798

Prediction of the Flow Stress of 00Cr17Ni14Mo2 Steel during Hot Deformation
p.802

A Feasible Method for a Class of Mathematical Problems in Manufacturing System
p.806

Mode Decision Strategy for I-Frames in H.264/AVC Based on Low-Pass Filter
p.810

Study on Mid-Infrared Transmittance Spectroscopy for Fast Measurement of Crude Fat Content in Fish Feeds Based on BPNN and LS-SVM
p.816

HomeKey Engineering MaterialsKey Engineering Materials Vols. 460-461Numerical Simulation on the Laser Bending of Thin...

Numerical Simulation on the Laser Bending of Thin Wall Tubes

Abstract:

Laser tube bending is a spring-back-free noncontact forming method that has received considerable attention in recent years. Compared to mechanical bending, no hard tooling, dies, or external force is used in laser bending, thus the cost is greatly reduced for small-batch production and prototyping. Some quality issues, such as cross sectional distortion and intrados protrusion exist in laser bending and have growing tendency when the tube’s wall being thinner. This paper investigates the effects of process parameters on the deformation of thin wall tube through numerical simulations and experiments. The dimensions of the tube analyzed are 32 mm in outer diameter and 0.48mm in wall thickness. A three-dimensional transient thermo-mechanical analysis using the finite element method is carried out to simulate the laser bending process with some results validated by experiments. The effects of process parameters on the deformation of thin wall tubes are discussed in detail.