CCATA - A Computer-Aided Angular Tolerance Charting System

Ji, Ping; Xue, Juan

doi:10.1243/09544054b10804

Cited by 9 publications

(4 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Analysis of the existing methods for assigning tolerances and allowances for workpiece, as well as optimization methods [1][2][3][4][5][6] showed that the issue of the correct designation of tolerances and allowances for technological dimensions is very important, relevant and covers many aspects of the problem -methods for obtaining surfaces with the necessary accuracy parameters and quality, increase in efficiency, methods of assigning technological dimensions, etc. These methods can be described as the base to the solution of the problem, which relates to the variety of operative factors and their reciprocal action.…”

Section: Introductionmentioning

confidence: 99%

Calculation of linear technological dimensions with adaptation

2018

View full text Add to dashboard Cite

Technological dimensional calculations are a necessary stage of engineering process and allow to determine machining allowance. The problem is that, when processing hard-to-treat materials on NC machines, it is necessary to provide optimal processing conditions for each workpiece based on reliable information on allowances at each operation. However, according to the existing methodology for calculation of technological dimensions and, accordingly, allowances, for the hypothetical workpiece with wide dimensional tolerances the technological dimensions and allowances are determined once, while it is assumed that the specific workpiece must engage with the tolerances of the hypothetical workpiece. The article deals with an example of calculating linear technological dimensions with adaptation, based on the results of monitoring and performing a separate calculation of the dimensions and allowances for each concrete workpiece in each operation. The calculation is carried out using a processing scheme, a graph, equations of dimensional chains and a computer program. As a result of the study, it was found that the calculation of linear technological dimensions with adaptation makes it possible to determine the actual values of allowances at each transition and thereby ensure predictable processing conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Calculation of linear technological dimensions with adaptation

2018

View full text Add to dashboard Cite

show abstract

“…A theoretical basis of calculation is the theory of dimensional chains or tolerance charting, mathematical model is graph [1,2,3,4,5]. Nowadays given calculation is automated [6].…”

Section: Introductionmentioning

confidence: 99%

Solution of the problem of negative value of the linear technological size

2017

View full text Add to dashboard Cite

Abstract. The calculation of the linear technological sizes is one of necessary design stages of technological processes of machining. A problem is that with performance of calculation of the linear technological sizes negative value of the technological size sometimes turns out. In the article consideedr an example of calculation, in which аppears negative value of the technological size. The calculation is carried out on the technique with use of the chart of processing and the computer program which is carrying out automatic construction and the decision of the equations of dimension chains. As a result of the study, it was found that the appearance of a negative value when calculating the technological dimensions is not an error, this is due to the uncertainty of the positions of the technological size boundaries before calculation.

show abstract

“…In addition, some application systems were developed [10][11] . However it should be noted that the constraint of the current manufacturing resource was not considered both in the above researches and the mentioned systems.…”

Section: Introductionmentioning

confidence: 99%

Concurrent Tolerance Design System Based on Manufacturing Context

Wang

Zhang

Cao

et al. 2011

AMR

View full text Add to dashboard Cite

This paper introduces a computer-aided concurrent tolerance design system based on real manufacturing resources (CATFM), which can ensure the optimal robust tolerance and consider real manufacturing resource owned by the factory. Firstly, the concurrent tolerance design model which can get balance between quality and cost utilizing Taguchi's quality loss function is proposed. Then the principle of concurrent tolerancing is concisely depicted through analyzing the overall structure of the system, and the design method is described in detail. Finally, an example is adopted to illustrate the proposed system.

show abstract

CCATA - A Computer-Aided Angular Tolerance Charting System

Cited by 9 publications

References 8 publications

Calculation of linear technological dimensions with adaptation

Calculation of linear technological dimensions with adaptation

Solution of the problem of negative value of the linear technological size

Concurrent Tolerance Design System Based on Manufacturing Context

Contact Info

Product

Resources

About