In manufacturing industry there are many applications for the permanent joint of components of different shapes, but they are also very different in terms of chemical composition and structure [1, 2]. This paper is trying to find technological solutions of assembling by welding of two steels with totally different chemical composition, i.e. carbon steel S235JR + AR and austenitic stainless 316L. The process used for making the heterogeneous joint was Metal Inert Gas (MIG) with flux cored wire, numerically coded 137. The paper presents the effects of welding technology, through heat input, such as hardness. Variations of hardness values determined in the joint areas are presented, as well as the chemical composition of the welded joint obtained using the flux cored wire T 23 12 LPM 1/C1, according to EN ISO 17633 - A.
Starting from the concept that the industrial construction represents a work system with four defying components such as the executant, the workload, the means of productions and the work environment, the collective protection systems for the principal categories of activities, which are ongoing into the industrial building sites, must be analyses and evaluated. The work accidents risks and occupational illness are and they will be present all the time in the industrial building sites. The problem of prevention specialists consists in the way in which the organized and implemented measures are applied and made effective, in order to avoid the occurrence of events or, at least, to mitigate their consequences for the jobs in the industrial sites. Of the specific activities frequently encountered in temporary construction sites, the construction and assembly of metallic structures for the strength and elevation of buildings is highlighted, where there is a large and complex exposure to the risks of injury and also to professional illness. This paper presents a complex evaluation of accidents risks in a construction site for a mechanical locksmith stationary metal structures.
Destructive and non-destructive testing of materials present a rapid expansion given by the increase in market demand caused by the desire to obtain an increasingly better quality of products. The continuous increase in quality demands leads directly to the need to implement and modernize the techniques, methods, and equipment used for quality control. Consequently, the need for product testing services has a rapid growth. This paper presents the strength and weaknesses of implementing IT tools for the estimation of the measurement uncertainty in testing laboratories and the impact of these tools on the economic part
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