Optimization Coupling Approach for/with Non-Static Point Based CAT-models

Litwa, Frank; Gottwald, Martin; Spudeiko, S.; Paetzold, Kristin; Vielhaber, Michael

doi:10.1016/j.procir.2016.02.034

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…Researchers have been trying to translate the GD&T rules into the language that can be recognized by computer. If successful, the tolerancing process can be completed by computer [4] . The researchers categorized the automation sophistication of the GD&T process into three levels.…”

Section: Introductionmentioning

confidence: 99%

Teaching Geometric Dimensioning and Tolerancing by Using an Algorithm to Implement the Datum-based Model

Sun

Gao

2020 ASEE Virtual Annual Conference Content Access Proceedings

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Geometric Dimensioning and Tolerancing (GD&T) is a critical part in mechanical and manufacturing design. So far, the GD&T process can only be accomplished manually with limited help from computer-aided tools. The whole process is tedious. To automate the GD&T process has many positive impacts on boosting both the effectiveness of student learning and competitiveness of the manufacturing industry. A datum-based model for practicing GD&T has been developed. In this paper, the authors will introduce an algorithm to automate the implementation of the datum-based GD&T model. Both the model and the algorithm were used in teaching GD&T. The course assessment was done in 2018 and 2019. The assessment fulfilled expectations.

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Section: Introductionmentioning

confidence: 99%

Teaching Geometric Dimensioning and Tolerancing by Using an Algorithm to Implement the Datum-based Model

Sun

Gao

2020 ASEE Virtual Annual Conference Content Access Proceedings

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From tolerance allocation to tolerance-cost optimization: a comprehensive literature review

Hallmann¹,

Schleich²,

Wartzack³

2020

Int J Adv Manuf Technol

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It is widely acknowledged that the allocation of part tolerances is a highly responsible task due to the complex repercussions on both product quality and cost. As a consequence, since its beginnings in the 1960s, least-cost tolerance allocation using optimization techniques, i.e. tolerance-cost optimization, was continuously in focus of numerous research activities. Nowadays, increasing cost and quality pressure, availability of real manufacturing data driven by Industry 4.0 technologies, and rising computational power result in a continuously growing interest in tolerance-cost optimization in both research and industry. However, inconsistent terminology and the lack of a classification of the various relevant aspects is an obstacle for the application of tolerance-cost optimization approaches. There is no literature comprehensively and clearly summarizing the current state of the art and illustrating the relevant key aspects. Motivated to overcome this drawback, this article provides a comprehensive as well as detailed overview of the broad research field in tolerance-cost optimization for both beginners and experts. To facilitate the first steps for readers who are less familiar with the topic, the paper initially outlines the fundamentals of tolerance-cost optimization including its basic idea, elementary terminology and mathematical formulation. These fundamentals serve as a basis for a subsequent detailed discussion of the key elements with focus on the different characteristics concerning the optimization problem, tolerance-cost model, technical system model and the tolerance analysis model. These aspects are gathered and summarized in a structured mind map, which equips the reader with a comprehensive graphical overview of all the various facets and aspects of tolerance-cost optimization. Beside this, the paper gives a retrospect of the past fifty years of research in tolerance cost-optimization, considering 290 relevant publications. Based thereon, current issues and future research needs in tolerance-cost optimization were identified.

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Distribution analysis of deterministic clamping and positioning error for machining of ring-shaped workpieces considering alignment uncertainty

Du,

Liu,

Jin

2024

Int J Adv Manuf Technol

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Optimization Coupling Approach for/with Non-Static Point Based CAT-models

Cited by 5 publications

References 20 publications

Teaching Geometric Dimensioning and Tolerancing by Using an Algorithm to Implement the Datum-based Model

Teaching Geometric Dimensioning and Tolerancing by Using an Algorithm to Implement the Datum-based Model

From tolerance allocation to tolerance-cost optimization: a comprehensive literature review

Distribution analysis of deterministic clamping and positioning error for machining of ring-shaped workpieces considering alignment uncertainty

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