A Theoretical Model of Grinding Force and its Simulation

Qin, De Lin; Wang, Feng; Xi, Fang Jian; Liu, Zhi Feng

doi:10.4028/www.scientific.net/amr.690-693.2395

Cited by 3 publications

(2 citation statements)

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“…Through this certainty each structure is statically and dynamically analyzed separately as a continuum body with its corresponding differential equation; then, each equation is evaluated on n-point chosen; finally, those Z points are computed in the PM matrix in the X and Y coordinate, applies in each Z. First, with respect to the grinding process, the mathematical model to determine the cutting force considering the flat surface in petrous material is the proposed by Qin [33]. Second, the metrological process was performed combining the differential measurement method with digital instrument, proposed by Haitjema [27], and the strategy point extraction route and flat surfaces researched by Lakota [28].…”

Section: Selection Of Methodsmentioning

confidence: 99%

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Selective polishing method to increase precision in large format lightweight machine tools working with petrous material

Arango

Copete-Murillo

2019

Rev.Fac.Ing.Univ.Antioquia

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In this article two complementary methods are developed. Firstly, a method to add precision in large machine tools with modular lightweight structures (APLM), which performs the compensation of geometrics and dynamics errors using embedded intelligence, and secondly, an alternative polishing method called selective polishing (SP). This systematic process comprehends measurement tools and algorithm resources. Phenomena occurred in the machine structure, due to interaction between the cutting tools and the petrous materials in the grinding and polishing processes are modeled mathematically. Using validated flatness models, the variables and parameters were discretized to determine the errors with respect to the Z axis. To validate the method, a test machine of 3m 2 workspace with a multi-body lightweight structure design was built. The geometrical errors were determined using precision instruments and those were compared with a pattern surface. A higher flatness is achieved through a combined grinding-traditional polishing and selective polishing process using the same machine. This method saves time and energy consumption.

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Section: Selection Of Methodsmentioning

confidence: 99%

“…The cutting force of the tool to the grinding process is calculated using the mathematical model presented by Qin [33] (see Equations (6) and (7). The force determined from the travel velocity and spindle rotation includes cutting parameters, depths, and specifications of the cutting tool.…”

Section: Dynamic Errorsmentioning

confidence: 99%