Tubular Composite Material for Hardfacing Layers with Protection Appliance against Abrasive Wears

Abstract

Thermal spraying technologies are an effective way to ensure surface protection against destructive effects of wear, corrosion and oxidizing phenomena which can be applied in majority industrial sectors for improving properties of new parts or for reconditioning worn out parts technology. The powders used in this study are mainly used in the repair of cast iron parts (e.g. engine blocks) and in build - up of press tools for car bodies, threads, turbine-guided vanes, rotating valves and shafts in eccentric presses. Three types of tubular composites based on WC powders were studied which demonstrated that this technology improved their properties.

Comparative Reliability Analysis of Milling Teeth Manufactured by Conventional Cutting Processes and Laser Cladding

“…Four variants of metal deposition on teeth were used to establish the optimal working parameters required to achieve the deposition of a homogeneous layer of powders with high wear resistance on the whole frustoconical surface of the tooth (Fig- Various welding processes are used, such as WIG, MIG-MAG, oxyacetylene flame, laser, with appropriate additives [13][14][15] to carry out the metal deposition of the frustoconical section of the milling tooth body, the purpose being to develop intelligent anti-wear and anti-lock protection systems when rotating around their axis.…”

“…The basic design is aimed at increasing wear resistance by welding deposition of annular cords (2) of adequate width and thickness, with high wear resistance and self-locking protection while rotating around their own axis [6,7,12]. Various welding processes are used, such as WIG, MIG-MAG, oxyacetylene flame, laser, with appropriate additives [13][14][15] to carry out the metal deposition of the frustoconical section of the milling tooth body, the purpose being to develop intelligent anti-wear and anti-lock protection systems when rotating around their axis.…”

Lifetime Analysis of Dies Manufactured by Conventional Processes and Reconditioned by Deposition Welding Operation

“…The research in the field demonstrates that the most efficient and economical procedure for product wear area refurbishment is welding deposition [17] with wear protection systems [18]. Additional materials can also be used to increase the wear resistance of a die's active surface through welding layers with high hardness [19][20][21], which protect the base metal.…”