Micro grinding with ultra small micro pencil grinding tools using an integrated machine tool

Aurich, Jan C.; Carrella, Marina; Walk, Michael

doi:10.1016/j.cirp.2015.04.011

Cited by 48 publications

(8 citation statements)

References 11 publications

(13 reference statements)

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“…Robotized machining centers can be used for finishing, especially of large elements with complex geometry [12]. For the implementation of ceramics grinding processes, among others, specialized multiaxis microgrinding centers [13][14][15] are built and their dynamic characteristics are improved [16]. In the case of machining small ceramic elements, the main technological problem is the automation of the process.…”

Section: Introductionmentioning

confidence: 99%

A Method and Device for Automated Grinding of Small Ceramic Elements

et al. 2021

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The paper describes an automated method for grinding small ceramic elements using a hyperboloid wheel. The problem of automating the process of machining elements made of nonmagnetic materials with a small area and low height has been solved. Automation of the grinding process was possible thanks to automatic clamping of workpieces in the machining zone and sequential processing by a specified number of grinding wheels. The workpieces were passed through successive machining zones. The division of the allowance of individual grinding wheels was made taking into account the characteristics of the workpieces and the requirements for the results of the machining. Obtaining a long grinding zone and the effect of automatic clamping of the workpieces was possible due to the inclination of the grinding wheel axis in relation to the plane of movement of the workpieces. Innovative aggregate grinding wheels were used for grinding. The aggregates containing diamond abrasive grains, connected with a metal bond, were embedded in the porous structure of the resin bond. The aggregates ensured high efficiency of grinding, and their developed surface contributed to good holding in the resin binder. The durability of grinding wheels was 64 h, which enables the machining of 76,000 ceramic elements.

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Section: Introductionmentioning

confidence: 99%

A Method and Device for Automated Grinding of Small Ceramic Elements

et al. 2021

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“…While machining processes on the microscale are commonly used in ultra-precision engineering [8], nanometersized mechanisms are out of reach for most applications. However, in the fields of photolithography, chemical etching, laser machining, atomic force lithography, or focused ion beam lithography, nanofabrication techniques are already being used [9].…”

Section: Introductionmentioning

confidence: 99%

Distortion of a polycrystalline Al bar in a vice fixture: molecular dynamics analysis of grain movement and rotation

Vardanyan

Linke

Urbassek

2021

Int J Adv Manuf Technol

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The deformation of a nano-sized polycrystalline Al bar under the action of vice plates is studied using molecular dynamics simulation. Two grain sizes are considered, fine-grained and coarse-grained. Deformation in the fine-grained sample is mainly caused by grain-boundary processes which induce grain displacement and rotation. Deformation in the coarse-grained sample is caused by grain-boundary processes and dislocation plasticity. The sample distortion manifests itself by the center-of-mass motion of the grains. Grain rotation is responsible for surface roughening after the loading process. While the plastic deformation is caused by the loading process, grain rearrangements under load release also contribute considerably to the final sample distortion.

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“…Micro pencil grinding tools (MPGTs) and single edged micro end mills made of cemented carbide and manufactured via precision grinding are available in various geometrical shapes and can be scaled down to 4 µm for micro pencil grinding tools [ 14 ] and 10 µm for micro end mills [ 15 ]. Micro pencil grinding tools consist of a cemented carbide basic body and an abrasive body.…”

Section: Introductionmentioning

confidence: 99%

Application of Ultra-Small Micro Grinding and Micro Milling Tools: Possibilities and Limitations

et al. 2017

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Current demands for flexible, individual microstructures in high quality result in high requirements for micro tools. As the tool size defines the minimum structure size, ultra-small tools are needed. To achieve tool diameters of 50 µm and lower, we investigate the complete manufacturing chain of micro machining. From the development of the machine tools and components needed to produce and apply the micro tools, the micro tools themselves, as well as the micro machining processes. Machine tools are developed with the possibility of producing the micro geometry (cutting edge design) of micro tools as well as plating processes to produce super abrasive micro grinding tools. Applying these setups, we are able to produce ultra-small micro grinding and micro milling tools with typical diameters of 50 µm and down to 4 µm. However, the application of such tools is very challenging. The article presents possibilities and limitations in manufacturing the micro tools themselves as well as microstructures made with these tools. A special emphasis will be on the influence of the tool substrate in micro milling and grain sizes in micro grinding.

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Micro grinding with ultra small micro pencil grinding tools using an integrated machine tool

Cited by 48 publications

References 11 publications

A Method and Device for Automated Grinding of Small Ceramic Elements

A Method and Device for Automated Grinding of Small Ceramic Elements

Distortion of a polycrystalline Al bar in a vice fixture: molecular dynamics analysis of grain movement and rotation

Application of Ultra-Small Micro Grinding and Micro Milling Tools: Possibilities and Limitations

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