Six sigma and design of experiments for improving the production of composite pipes

Srebrenkoska, Sara and Kocov, Atanas and Minovski, Robert (2016) Six sigma and design of experiments for improving the production of composite pipes. Journal for Technology of Plasticity, 41 (2). ISSN 0354-3870

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Abstract

Within the frames of this paper it was applied the six-sigma DMAIC methodology for improving the production process of composite pipes. The quality needs of the composite pipes were defined: resistance on high interior pressure and the important entries that influence on the improved solu- tion. A designing was made for improving of the industrial process, i.e. planning of the experi- ments and on the basis of the plan matrix, 8 models of composite pipes were manufactured. During the process of designing three parameters were taken which influence the experiments the most: velocity, fiber tension and winding angle. Also, it was used three-factorial method for experi- mental planning with two levels of variation 23. For all manufactured composite pipes the hoop tensile strength was tested in a lab. On the basis of the received experimental data it was created the regression equitation which the best describes the process.

Key words: six sigma, experimental design, plan matrix, fiber winding, composite pipes, tensile strength.

Item Type:	Article
Subjects:	Engineering and Technology > Mechanical engineering
Divisions:	Faculty of Mechanical Engineering
Depositing User:	Sara Srebrenkoska
Date Deposited:	07 Nov 2022 11:46
Last Modified:	07 Nov 2022 11:46
URI:	https://eprints.ugd.edu.mk/id/eprint/30437

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