Analisis Properties of The New Produced Welded Parts – Regulated Spindels
Abstract:
This research work concerns to investigation properties (fitness for purpose) of new produced welded parts. Be sides scientific this paper has practical meaning too. Investigations was prepared on the request of the Company MZT WABTEK AD, Skopje that produce and build in parts for railway vehicles. Subject of investigations are two new produced (non-used) welded parts named regulating spindles. These regulated spindels were produced by welding company i.e. subcontractor. Two delivered, new regulating spindles were tested to check their properties, mechanical and microstructural. Based on request from purchasers, the following testing were performed: • Visual Inspection; • Tensile testing; • Determination of non-metallic inclusions; • Macro and micro metallography; • Hardness measurement The results of performed testing were analyzed in detail, and the following opinion about the quality of new man ufactured regulating spindles is given: Presented investigations of the new produced spindles were performed in order to check their quality before implementation in exploatation conditions. More concretely the quality of ERW (Electro Resistance Welding) was checked. It was concluded, from the performed investigations, that properties of the investigated spindles are in accordfance with standard requirements. So the spindles can be implemented in the exploatation if all of them have the same quality as the two investigated spindles.
