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  • Author: Attila Zsolt Kenéz x
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Pressure Welding Processes of Tubular Parts and Pipe Segments

Abstract

The joining of tubular (hollow, sectioned) parts to each other or for rods, sheet-like pieces and occasionally for pipe segments, is often achieved by using technology that uses a pressure welding process. These processes use mostly electrical, thermochemical or mechanical energy, and the implementation is butt, stud or projection welding. Most the pressure welding processes are suitable for the joining of different quality materials. This article summarizes the possible process variations.

Open access
Applicability Investigation of Joining Technologies for Diamond Core Bits

Abstract

For the joining of two metallic components of different material quality, different methods of welding or soldering techniques are used. In this case, these two material qualities are given by the segments containing diamond particles, and thin-walled steel tube. In our previous paper we analysed welded joints with two different kinds of laser sources. In this paper we extend the previous investigations with the analysis of capacitor discharge welded and flame soldered samples. We examine the microstructure of the joints and record the chemical element maps to determine if alloying was formed. Joints are also subjected to fracture and hardness testing. This investigation shows that the applied joining technology meets the increased technical requirements because the joining zone must bear high mechanical and significant thermal loads during usage.

Open access