Abstract
This work aims to present some aspects regarding the opportunity of using basalt in manufacturing the subassemblies of machine tools. Melted and recrystallized basalt has demonstrated promising behavior with regards of its use in manufacturing, as reported in the literature. The researches presented in this work were focused on analyzing the behavior of basalt parts for machine tools submitted to thermic stress. The tests were made using grey cast iron and steel parts as reference for a comparative study. Testing methodology, specific measuring apparatus used, experimental test data records, data processing and resulting conclusions regarding the possibility of using basalt in machine tools manufacturing are presented in the paper.
Highlights
IntroductionStructural elements of the machine-tool are subject to stresses in different ways due to all previously presented factors, a lot of research work regarding the use of different materials for manufacturing machine-tools elements is reported in the literature [1, 3]
In the present worldwide context to find new resources of materials in order to replace the traditional ones, the study and use of basalt, a cheap, accessible and widespread material, in machine tool building and textile machinery is doubtless an interesting challenge because these industrial branches have completely different particularities compared to chemistry or construction in which basalt has been already largely used.Structural elements of the machine-tool are subject to stresses in different ways due to all previously presented factors, a lot of research work regarding the use of different materials for manufacturing machine-tools elements is reported in the literature [1, 3]
Basalt confer the following advantages: - the present casting process permit to obtain relatively big parts having many shapes and good precision - the basalt casting does not require special conditions and can be performed on existing installations having low processing costs. This experimental research is leading to the following conclusions:
Summary
Structural elements of the machine-tool are subject to stresses in different ways due to all previously presented factors, a lot of research work regarding the use of different materials for manufacturing machine-tools elements is reported in the literature [1, 3]. A composition containing basalt, spodumenne and fly ash was found to have the highest flexural strength and lowest thermal expansion coefficient [5]. To achieve this goal as a thorough knowledge with regard to the thermic behaviour of basalt parts is needed, mainly the temperature field and the resulting deformations [7]. Bibliographical studies show that from this point of view basalt has not been examined until now so this research includes the own contribution of the authors to the thermic behaviour of basalt parts submitted to specific stresses and loads
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