• Proceedings of the KWS Conference
• /
• 2000.04a
• /
• pp.167-169
• /
• 2000

• Proceedings of the KWS Conference
• /
• 1996.05a
• /
• pp.55-57
• /
• 1996

• Proceedings of the KWS Conference
• /
• 1990.11a
• /
• pp.56-59
• /
• 1990

• Journal of Welding and Joining
• /
• v.11 no.1
• /
• pp.9-20
• /
• 1993

• Journal of Welding and Joining
• /
• v.18 no.6
• /
• pp.1-3
• /
• 2000

• Journal of Welding and Joining
• /
• v.18 no.2
• /
• pp.138-138
• /
• 2000

• Journal of Welding and Joining
• /
• v.18 no.2
• /
• pp.11-13
• /
• 2000

• Journal of Welding and Joining
• /
• v.17 no.5
• /
• pp.29-35
• /
• 1999

• Journal of Welding and Joining
• /
• v.15 no.2
• /
• pp.43-53
• /
• 1997

The complete joining method for dissimilar press punch materials and its real-time evaluation method is not available at present. Brazing method has been used for joining them, but it is known that the welded joint by the brazing has the lower bonding efficiency and reliability than the diffusion welding. The friction welding with a diffusion mechanism in bonding was applied in this study. This work was carried out to determine the proper friction welding conditions and to analyze mechanical properties of friction welded joints of sintered carbide tool materials (SKNM50 for the blade part of press punch) to alloy steel (SCM440 for the shank part of press punch) using aluminum (A6061 for the interlayer material) as an insert material between the sintered carbide tool materials and the alloy steel. In addition, acoustic emission test was carried out during friction welding to evaluate the weld quality.

• Journal of Welding and Joining
• /
• v.33 no.5
• /
• pp.1-8
• /
• 2015

Aluminium and its alloys are widely used in brazing various components in automotive industries due to their properties like lightweight, excellent ductility, malleability and formability, high oxidation and corrosion resistance, and high electrical and thermal conductivity. However, high machinability and strength of aluminium alloys are a serious concern during casting operations. The generation of porosity caused by dissolved gases and modifiers affects seriously the strength and quality of cast product. Brazing of Al and its alloys requires careful monitoring of temperature since theses alloys are brazed at around the melting temperature in most of the aluminium alloys. Therefore, the development of low temperature brazing filler alloys as well as superior strength Al alloys for various engineering applications is always in demand. In various heat exchangers and automotive applications, poor strength of Al alloys is due to the inherent porosities and casting defects. The unstable mechanical properties is therefore needed to be controlled by adding various additive elements in the aluminium and its alloys, by a change in the heat treatment procedure or by modifying the microstructure. In this regard, this article reports the effect of various elements added in aluminium alloys to improve microstructure, brazeability, machinability, castability as well as to stabilize the mechanical properties.