Coordinate Measuring Machine Measurement Planning

Moroni, Giovanni; Petrò, Stefano

doi:10.1007/978-1-84996-311-4_4

Cited by 16 publications

(10 citation statements)

References 41 publications

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“…This may include knowledge of the manufacturing process. However, given the large number of variables involved, doubts have been raised as to whether the information captured can ever suffice [22].…”

Section: Expertmentioning

confidence: 99%

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An Exploration into Measurement Consistency on Coordinate Measuring Machines

Saunders¹,

Wilson²,

Orchard³

et al. 2014

Procedia CIRP

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In high precision industry, the measurement of geometry is often performed using coordinate measuring machines (CMMs). Measurements on CMMs can occur at many places within a long and global supply chain. In this context it is a challenge to control consistency, so that measurements are applied with appropriate levels of rigour and achieve comparable results, wherever and whenever they are performed. In this paper, a framework is outlined in which consistency is controlled through measurement strategy, such as the number and location of measurement points. The framework is put to action in a case study, demonstrating the usefulness of the approach and highlighting the dangers of imposing rigid measurement strategies across the supply chain, even if linked to standardised manufacturing processes. Potential mitigations, and the requirements for future research, are outlined.

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Section: Expertmentioning

confidence: 99%

“…However there are unresolved technical difficulties, for example in avoiding collisions. A related adaptive approach is to study the manufacturing process and characterise its 'signature' [22]. The signature is used to develop a model of the real feature that was produced.…”

Section: Adaptivementioning

confidence: 99%

An Exploration into Measurement Consistency on Coordinate Measuring Machines

Saunders¹,

Wilson²,

Orchard³

et al. 2014

Procedia CIRP

View full text Add to dashboard Cite

show abstract

“…These factors include sampling strategy, workpiece position and orientation, surface conditions, sensor type and configuration, and environment conditions. As discussed by Moroni and Petrò 9 and Li et al, 10 sampling strategy (or the measurement plan) is one of the main factors which can escalate the measurement uncertainty.…”

Section: Sampling Strategy and Its Purposementioning

confidence: 99%

Application of the sampling strategies in the inspection process

Mian

Al-Ahmari

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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The selection of appropriate sample size and point distribution on the measuring surface has been a fundamental problem in the contemporary coordinate metrology. It is usually resolved by the users depending on their instinct or prior experience. As a result, inspection results have to be compromised between accuracy and measurement time. However, to deliver quality products in minimum time, effort, and cost, a reliable and an efficient sampling plan is mandatory. Although there have been a remarkable progress due to the development of various procedures for computing the sample size and selecting the appropriate point distribution, still users are inconversant with the characteristics and applications of the available sampling methods due to the absence of a proper review. Accordingly, a systematic review, giving insight into the various strategies available for the sample size and the point distribution, is presented. In this article, different algorithms and their application in the estimation of sample size and point distribution have been reviewed comprehensively. The classification of sampling methods and the importance of adaptive sampling have also been described. It has been concluded that the effectiveness of inspection process or the performance of coordinate measuring machine can be escalated through the application of a suitable sampling strategy. Therefore, the metrologists should either develop an effective method for defining sampling strategy or select the most suitable method from the available resources before carrying out the inspection process.

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“…These factors may include sampling strategy, part positioning, and orientation, surface characteristics, probing system, and environmental conditions [6]. Certainly, the sampling strategy has been recognized as one of the primary aspects, which can affect the quality of measurement results [7,8]. The sampling strategy can be considered as an essential parameter to accurately assess the tolerance information [9].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Realization of Sampling Strategy in Coordinate Metrology

Mian

Al-Ahmari

Alkhalefah

2019

Mathematical Problems in Engineering

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The stringent customer demands and competitive market emphasize the importance of efficient and effective inspection in industrial metrology. Therefore, the implementation of an appropriate sampling strategy, i.e., the number of points and their distribution, has become very important in the inspection process using a coordinate measuring machine. Moreover, the quality of inspection results has frequently been influenced by sampling plan as well as workpiece size and surface characteristics. It has been an indispensable problem in the present-day measurement processes. Thus, this paper investigates various sample sizes and different point distribution algorithms that can be employed in the evaluation of form error. The effect of specimen size and surface quality on the sampling strategy has also been investigated. Furthermore, this work employs a fuzzy based Technique for Order Performance by Similarity to Ideal Solution approach to realize the best sampling strategy. The results have demonstrated the significance of robust optimization techniques as well as the importance of a suitable sampling strategy in coordinate metrology. This study has also established that Poisson point distribution achieved the best accuracy and the Grid point distribution had taken the least measurement time.

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Coordinate Measuring Machine Measurement Planning

Cited by 16 publications

References 41 publications

An Exploration into Measurement Consistency on Coordinate Measuring Machines

An Exploration into Measurement Consistency on Coordinate Measuring Machines

Application of the sampling strategies in the inspection process

Analysis and Realization of Sampling Strategy in Coordinate Metrology

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