Proceedings of 2018 ASEE Northeast Section Conference

Quantification Of Posture In Human Lathe Interface
GIRISHWARAN SUNDAR
Abstract

Despite extensive automation, manual lathes are still in use in a number of places, commercially as well as in education and training worldwide. This is due to a variety of reasons. Examples are: smaller shops may not be able to afford or their needs would not justify investing in expensive CNC lathes. In these situations older manual lathes would suffice. In technology schools, and in most engineering schools, manual lathes are still in use for teaching and training purposes, and for their control-ability as well as economic advantages. Manual lathes are also quite common in the third world and developing countries for production, fabrication, teaching and training. In these cases, the most pronounced reason is affordability.  The literature is replete with human factors / ergonomics studies of safe usage of shops and the equipment therein, including articles on safe usage of lathe machines.  However, despite the frequent and widespread use of manual lathes, many of the users do not seem to be aware of the potential problems that could arise from the wrong or inadequate human-lathe interface, including poor work postures and noise.  The informal sampling of users has shown that none was aware of the existence of the variety of ergonomic assessment tools for shop equipment. In this study, we are improvsing an ergonomic assessment tool and evaluation method for the manual lathe in a fabrication and manufacturing shop of the college of engineering.  The said tool will expose the student lathe users of the ergonomically sound approaches to the use of a manual lathe, especially in terms of body postures and environmental factors.   The assessment tool and evaluation method is also expected to greatly benefit the shop supervisor for his teaching and training purposes and the student apprentices as they progress through the training process. The student apprentices will be able to identify any shortcomings in the current machine set-up, and in the broader sense, they will learn about proper man-machine interfaces and good ergonomics practices in the workplace. The final product will be tested on novice users and data collected, analyzed, interpreted and discussed. The tool is also expected to be useful to the manual lathe operators in the commercial sector.


Last modified: 2018-04-27
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