Ultra-high frequency induction and conventional sintering of Al-SiO2 composites: A comparative study

2020 ◽  
Vol 62 (10) ◽  
pp. 1048-1054
Author(s):  
Mehmet Ayvaz ◽  
Uğur Çavdar ◽  
Burak Gül ◽  
Levent Ulvi Gezici
Keyword(s):  
Comparative Study ◽  
High Frequency ◽  
Ultra High Frequency ◽  
Conventional Sintering ◽  
High Frequency Induction

Numerical Simulation and Experimental Verification of Ultra-High Frequency Induction Cladding with Metal Wire

2020 ◽  
Vol 975 ◽  
pp. 25-30
Author(s):  
Zhen Fei Bing ◽  
Yong Jun Shi ◽  
Rui Sun ◽  
Yan Kuo Guo
Keyword(s):  
Cast Iron ◽  
Numerical Model ◽  
High Frequency ◽  
Gray Cast Iron ◽  
Steel Wire ◽  
Metal Wire ◽  
Gray Cast ◽  
Ultra High Frequency ◽  
Heating Efficiency ◽  
High Frequency Induction

This paper proposes a novel approach of ultra-high frequency induction cladding with metal wire, in which AISI type 316L stainless steel wire (SS316L) is coated on gray cast iron to improve the specific surface properties of gray cast iron. The corresponding numerical model coupled with electromagnetic field and temperature field has been developed to obtain the representative distribution of induction heat. The established numerical model has been validated experimentally, and the temperature distribution captured in experiment shows good agreement with the calculated results. Given the high heating efficiency and selective heating characteristics of ultra-high frequency induction cladding technology, this method can be applied to the micro-crack repair on the surface of the thermal-sensitive materials.

Welding of Fiber Reinforced 5-Harness Satin Woven Thermoplastic Composite Fabrics by Ultra-High Frequency Induction System

2021 ◽  
Author(s):  
Oner Hasim Olgun ◽  
UGUR CAVDAR
Keyword(s):  
High Frequency ◽  
Sem Analysis ◽  
Woven Fabrics ◽  
Thermoplastic Composite ◽  
Intimate Contact ◽  
Ultra High Frequency ◽  
Induction System ◽  
Composite Fabrics ◽  
Glass Surfaces ◽  
High Frequency Induction

Abstract In this study, we report 6 plies of 5-harness satin woven fabrics were welded each other by ultra high frequency induction system between two tempered glass surfaces at 400°C under 640 kPa pressure for 120 seconds. The results of mechanical properties, Brinell hardness tests and SEM analysis proved an intimate contact between plies allowing the fusion in the bonding area for PEEK matrix.

Interfacial Microstructure of Ultra-High Frequency Induction Brazed CBN Grains Using Ag-Based Alloy

2013 ◽  
Vol 770 ◽  
pp. 45-49 ◽  
Author(s):  
Qi Lin Li ◽  
Jiu Hua Xu ◽  
Hong Hua Su ◽  
Xin Tong
Keyword(s):  
High Frequency ◽  
Active Element ◽  
Interfacial Microstructure ◽  
Steel Matrix ◽  
Filler Alloy ◽  
X Ray ◽  
Ultra High Frequency ◽  
Short Time ◽  
Continuous Induction ◽  
High Frequency Induction

Continuous induction brazing with ultra-high frequency was proposed to braze the monocrystalline CBN grains using Ag-based filler alloy. The interfacial microstructure of the brazed specimen and the resultant morphology on the CBN surface was investigated and analogized by scanning electron microscopy (SEM) and energy diffraction X-ray (EDX). The experimental results showed that the bonding among CBN grains, filler alloy and steel matrix was achieved. The CBN grains were well wetted by the filler alloy and formed a massive support profile. Moreover, the active element Ti of the filler diffused markedly and gathered in the interfacial of matrix/filler and filler/grain respectively. Due to the short dwell time in brazing, the newly formed resultants grew in a short time. The resultants layer did not entirely covered the CBN grain, and discretely distributed on the surface of CBN grain. The size of the resultants was less than 200nm.

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