NORMATIVE MEASUREMENTS OF NOISE AT CNC MACHINES WORK STATIONS
Dariusz Mika 1
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1
The State School of Higher Education, The Institute of Technical Sciences and Aviation, 54Pocztowa Street, 22-100 Chełm, Poland
2
Mechanical Engineering Faculty, Lublin University of Technology, 38d Nadbystrzycka Street, 20-618 Lublin, Poland
CORRESPONDING AUTHOR
Jerzy Józwik   

Lublin University of Technology, 38d Nadbystrzycka Street, 20-618 Lublin, 20-618 Lublin Lublin, Poland
Publication date: 2016-06-01
 
Adv. Sci. Technol. Res. J. 2016; 10(30):138–143
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ABSTRACT
Minimisation of noise at a workstation is among fundamental tasks for maintaining safety at work, both in terms of health (the auditory system in particular) as well as work comfort. Thus, it is very important to systematically monitor noise levels by carrying out reliable measurements at a workstation. The method of performing noise measurements at workstations of specific machines is normalised so the results of such measurements for different machines is comparable. This paper presents noise measurements for DMC 635 numerically controlled milling machine, performed in accordance with PN ISO 230-5:2002 norm. The results showed that the level of noise at the operator’s workstation significantly exceeds the norm at certain machining parameters. The results of tests are concluded as detailed recommendation for the CNC machine tool operator to use hearing protection when at work.