Welding Technologies for Repairing Plastic Injection Moulds

B. Silva; I. Pires; L. Quintino

doi:10.4028/www.scientific.net/MSF.587-588.936

Paper Titles

Properties of Gypsum-PCM Based Mortars for Interior Plastering of Construction Systems
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Effects of NaBH₄ Additions on Hydrogen Absorption by Nanostructured FeTi Powders
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An Impedance Study on the sPEEK/ZrO₂ Membranes for Direct Methanol Fuel Cell Applications
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Mechanosynthesis of La_0.95Sr_0.05Ga_0.90Mg_0.10O_3-δ
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Welding Technologies for Repairing Plastic Injection Moulds
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Dynamic Material Properties of Stainless Steel and Multiphase High Strength Steels
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Failure Mechanisms on Exhaust Systems of Naval Gas Turbines
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The Effect of the Carbon Epoxy Plate’s Size under Low Velocity Impact
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Development of Automotive Plastic Pillars for Preventing Occupant Injuries by Finite Element Simulations: The Role of Material Properties
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HomeMaterials Science ForumMaterials Science Forum Vols. 587-588Welding Technologies for Repairing Plastic...

Welding Technologies for Repairing Plastic Injection Moulds

Abstract:

The aim of the present paper is to investigate the metallurgical behaviour of AISI P20 tool steel frequently used in injection moulds, after welding. For this purpose Tig and Laser welding tests were conducted to determine the influence of the welding parameters, materials and preheating. The welding quality was assessed through the microstructural properties and microhardness evolution. The results achieved with the different processes were compared. This work allows to obtain a deeper knowledge concerning tool steels behaviour after welding.