Optimal fixture parameters considering locator errors

Vishnupriyan, S.; Majumder, M. C.; Ramachandran, K. P.

doi:10.1080/00207543.2010.532167

Cited by 27 publications

(13 citation statements)

References 23 publications

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“…Through the six points positioning, the blade can be completely restricted to keep the blade at the determined theoretical position. Since the blade body is free curve, easily deformed, and there are shape errors of the work piece, making it difficult to select an anchor point [1].Liu WW etc. [2], Northwestern Polytechnic University, invented a hydraulic fixture for the blade root machining of precision forging blade, located by vane basin, intake side, the inside edge of the plate, using a spring washer on the dorsal to clamp.…”

Section: Fixture Layout Optimizationmentioning

confidence: 99%

Research on precision forging blade TENON processing technology

Li-jiang¹,

Kou²,

Tian³

et al. 2015

Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering

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Abstract-TENON machining is an important and major processing for aero-engine precision forging blade. Traditional processing methods for TENON machining cannot meet the modern aero-engine performance, efficiency and environmental protection needs. In the paper, a "hard" clamping process method to machine blade TENON is proposed, and the key technologies of the method, fixture layout optimization and deformation controlling, are discussed in detail. Finally, we introduce specific scheme that designed a set of hydraulic special fixture with adaptive auxiliary support to realize "hard" clamping processing.

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Section: Fixture Layout Optimizationmentioning

confidence: 99%

Research on precision forging blade TENON processing technology

Li-jiang¹,

Kou²,

Tian³

et al. 2015

Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering

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“…The reason is that for an optimal placement of the locators, the reaction forces are minimised, and as a results the local part deformation is minimised. Furthermore, the fixture can be optimised to minimise the effect of locating errors (Chaipradabgiat et al 2009, Tian et al 2009, Vishnupriyan et al 2011. Or, the fixture layout can be designed such that the part orientation in the fixture is fool-proof.…”

Section: Fixturing Principlesmentioning

confidence: 99%

Active fixturing: literature review and future research directions

Bakker

Papastathis

Popov

et al. 2013

International Journal of Production Research

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Fixtures are used to fixate, position and support workpieces and represent a crucial tool in manufacturing. Their performance determines the result of the whole manufacturing process of a product. There is a vast amount of research done on automatic fixture layout synthesis and optimisation and fixture design verification. Most of this work considers fixture mechanics to be static and the fixture elements to be passive. However, a new generation of fixtures has emerged that has actuated fixture elements for active control of the part-fixture system during manufacturing operations to increase the end product quality. This paper analyses the latest studies in the field of active fixture design and its relationship with flexible and reconfigurable fixturing systems. First, a brief introduction is given on the importance of research of fixturing systems. Secondly, the basics of workholding and fixture design are visited. After which the

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“…Dynamic displacements caused by clamping and machining force are determined by FEA. Vishnupriyan et al [16] presented a method for determination of optimal fixture layout in order to minimize the machining error considering both locator geometric error and workpiece elastic deformation. Vishnupriyan [17] investigated the significance of system compliance and workpiece dynamics as the two critical sources of machining error.…”

Section: Introductionmentioning

confidence: 99%

Fixture Layout Design Based on a Single-Surface Clamping with Local Deformation

Tadić¹,

Todorovič²,

Novkinic³

2015

Int. j. simul. model.

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Proposed in this paper is a novel approach to fixture layout design. The contact interface between workpiece and fixture is reduced to a single workpiece surface. This allows reliable machining of the remaining five workpiece surfaces in a single setup. Workpiece clamping is performed by inserting special elements into prepared auxiliary openings on the workpiece. Clamping is thus reduced to indenting of sharp clamping element tips into the workpiece surface. Shallow indenting is performed on surfaces which have no practical function. Special device was designed to allow experimental investigation. Experimental results point towards the efficiency of the proposed approach. Workpiece displacements were small during machining and allowed the required machining accuracy. Furthermore, the results obtained during machining indicate high surface quality.

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Optimal fixture parameters considering locator errors

Cited by 27 publications

References 23 publications

Research on precision forging blade TENON processing technology

Research on precision forging blade TENON processing technology

Active fixturing: literature review and future research directions

Fixture Layout Design Based on a Single-Surface Clamping with Local Deformation

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