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SHEARING STRENGTH TEST OF ORTOPEDIC TITANIUM ALLOY SCREW PRODUCED IN THE PROCESS OF 3D TECHNOLOGY PRINTING
 
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1
Lublin University of Technology, Mechanical Engineering Faculty, Student Scientific Group, Department of Production Engineering, Nadbystrzycka Street 36, 20-816 Lublin, Poland
 
2
Lublin University of Technology, Mechanical Engineering Faculty, Department of Production Engineering, Nadbystrzycka Street 36, 20-816 Lublin, Poland
 
3
The State School of Higher Education, The Institute of Technical Sciences and Aviation, 54 Pocztowa Street, 22-100 Chełm, Poland
 
4
Department of Fundamental of Technology, Fundamentals of Technology Faculty, Lublin University of Technology, Nadbystrzycka Str. 38, 20-618 Lublin, Poland
 
 
Publication date: 2016-03-03
 
 
Corresponding author
Jerzy Józwik   

Lublin University of Technology, Mechanical Engineering Faculty, Department of Production Engineering, Nadbystrzycka Street 36, 20-816 Lublin, Poland
 
 
Adv. Sci. Technol. Res. J. 2017; 11(1):128-137
 
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ABSTRACT
The aim of the present dissertation is the assessment of technical shear resistance (technological shear) of orthopedic screw made of titanium alloy Ti6Al4V, produced using incremental technology in the process of 3D printing process. The first part of the work presents incremental techniques in production engineering. The second part of the present work contains specification of the 3D printing process of samples as well as the description of the used material. The fundamental part of the article is composed out of endurance tests for orthopaedic screws as well as the analysis of the obtained results and conclusions. The method of incremental production SLM using SLM 280HL metal printer was used during the technological process. The resistance tests were performed using ZWICK/ROELL Z150 machines. Identical endurance trials were performed for monolithic bars made of titanium alloys (of bar core size ) made on a wire electric discharge machine Sodick SL600Q for comparative purposes. The obtained test results enabled comparative assessment of the value of shear resistance Rt in the conditions of technological shear. According to the performed tests, the shear resistance Rt of orthopaedic screws is nearly 33% lower than of monolithic bars of the same core size.
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