Abstract
The purpose of this paper is to study combines the finite element method model and experimental on bimetal cross fitting by lateral extrusion process. Fabricating bimetallic cross fitting by lateral extrusion technique remains some difficulties like taking the product out of the die hardly, harming the die longevity since the high compressive force and friction effects. The Finite Element Method (FEM) results of bimetal cross fitting lateral extrusion process were obtained from ABAQUS software such as: Stress distribution, metal flow and influence of sleeve thickness. Numerical results were compared with the experimental results shown a good agreement. The bimetal cross fitting has been successfully fabricated by lateral extrusion process. The results showed a close agreement between the numerical simulation and experimental analysis of bimetal cross fitting.
Highlights
Nowadays, extrusion technique [1] is commonly applied in industrial production, manufacturing component parts in industries of automobile, aircraft, means of transportation, machines, devices with typical products like bars, wires, solid or hollow tubes having cross sections from simple to complex
Fabricating bimetallic cross fitting by lateral extrusion technique remains some difficulties like taking the product out of the die hardly, harming the die longevity since the high compressive force and friction effects
Lateral extrusion technique has some advantages than other traditional methods like saving materials, minimizing postprocessor, high productivity; good surface finished and high accuracy of dimension
Summary
Extrusion technique [1] is commonly applied in industrial production, manufacturing component parts in industries of automobile, aircraft, means of transportation, machines, devices with typical products like bars, wires, solid or hollow tubes having cross sections from simple to complex. Lateral extrusion generates shapes with flanges, collars or other geometric features (teeth, protrusions), whereby the die opening which gives the workpiece its shape remains unchanged during the entire forming process. Bimetal lateral extrusion is a metal forming operation which enables to manufacture products with optimal combination of desired properties. Initial billet consists of two different materials or two different alloys from the same material which are deformed simultaneously. The most usual combination of two materials is the core-sleeve configuration. Core material may have high strength properties and sleeve material should own antifrictional properties. Other material properties can be employed in bimetal operations such as magnetic, elastic expansion, electric conduction, etc
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