Experimental Research on Two-step Cooling Mechanism of the Oxide Film of ELID Grinding Wheel

Kuai, Ji Cai; Jiang-wei, Wang; Jiang, ChengRan

doi:10.1051/matecconf/20166704004

Cited by 2 publications

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“…Our early reports and results show that the friction and mechanical behaviors of oxide films by ELID grinding have profound effects on its polishing ability [2][3]. Furthermore we have explored the chemical composition and transformation procedure of oxide films and their influences on polishing ability [4]. And much is known about oxide film's temperature reduction performance [5].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behavior of Iron-bonded Grinding Wheel after ELID (Electrolytic In-process Dressing) Electrolysis Procedure by Nanoindentation

Kuai

Zhang

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract.We have evaluated the effect of oxide films on polishing behavior during ELID grinding process. The evaluation procedure used nano-indenter to analysis quantitatively the oxide film's mechanical properties on iron-bonded grinding wheel after ELID electrolysis. As a result, the oxide film's mechanical properties increased with the indent depth increasing. The plots of indent load and displacement for oxide films showed slight variations with time. The content of iron group elements in grinding wheel also has higher impact on oxide film' s properties. IntroductionThe friction and wear performance of oxide film on grinding wheels after ELID grinding has been gaining interest in the early 2000s, which was originated by T Kato [1]. Our early reports and results show that the friction and mechanical behaviors of oxide films by ELID grinding have profound effects on its polishing ability [2-3]. Furthermore we have explored the chemical composition and transformation procedure of oxide films and their influences on polishing ability [4]. And much is known about oxide film's temperature reduction performance [5]. Moreover, the microstructure of oxide film has shown to be core of diamond abrasive grits, surrounding with a thin film of iron oxides, and the outermost layer of α-Fe2O3 composite grits [6]. The polishing ability of oxide films is confined to the existence of α-Fe2O3 [7].These reports were based on static state of oxide films. However, grinding with oxide film is not a static condition as expected. Oxide films are wore out and then electrolyzed to form new films under a dynamic change process by ELID grinding. These early studies have described a certain state during oxide films' dynamic change and couldn't represent actual performances of oxide films. And here we will focus on the dynamic variation rule of oxide film to obtain better understandings of its properties and effect on polishing procedure. The motivation of the present study is to evaluate the mechanical properties of oxide films on iron-bonded grinding wheels under dynamic conditions. Nano indentation tests are conducted to experiments the main features of oxide film's microstructure and its effect on hardness, stiffness and elasticity modulus of oxide films.

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Section: Introductionmentioning

confidence: 99%