Tribological consideration in roller mill machines for agriculture applications

Al-Sandooq, J. M. and Yousif, B. F. and Jensen, T. A. (2012) Tribological consideration in roller mill machines for agriculture applications. Surface Review and Letters, 19 (6). pp. 1250065-1. ISSN 0218-625X


Roller mill are an important part of machines for preparation of agricultural food stuffs. Tribological loading is the main type of load that should be considered when investigating the design failure of roller mills or of the low quality of grinding products. In the current work a comprehensive analysis of the design of roller mills to withstand tribilogocal was undertaken. Three body abrasive loading (3BA) was found to be the key element to be considered in designing the roller. High stress three-body abrasion experiments were conducted on polyester and epoxy polymers to measure the wear and frictional characteristics of the selected material, different loads, durations and sand grain sizes were tested. Scanning electron microscopy and optical microscopy were used to categorize the damage on the worn surface of the materials and the causes of failure. The current results are compared with the performance of mild steel results based on the literature. The results revealed that polyester had relatively poor wear performance compared to epoxy and steel especially when large sand grains were used. The wear mechanisms on the polyester surface were macro-pitting, fracture, ploughing, and defragmentation; while, epoxy showed micro-pitting and defragmentation. Epoxy material performance indicates it has potential for replacing metal rollers in the milling machine.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy.
Faculty/School / Institute/Centre: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 14 Apr 2013 07:51
Last Modified: 09 Feb 2015 01:39
Uncontrolled Keywords: agriculture; milling machine design; tribological loading; quality.
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091309 Tribology
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070199 Agriculture, Land and Farm Management not elsewhere classified
09 Engineering > 0910 Manufacturing Engineering > 091003 Machine Tools
Socio-Economic Objective: B Economic Development > 86 Manufacturing > 8614 Machinery and Equipment > 861401 Agricultural Machinery and Equipment
Identification Number or DOI: 10.1142/S0218625X12500655

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