A survey on 3D CAD model quality assurance and testing tools

González-Lluch, Carmen; Contero, Manuel; Camba, Jorge D.; Plumed, Raquel

doi:10.1016/j.cad.2016.10.003

Cited by 54 publications

(32 citation statements)

References 109 publications

(156 reference statements)

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“…Computer aided techniques (CAx) are widely used in the mechanical engineering branch [4][5][6][7]. The main advantage of using the CAx systems is a shortening of the product's time development.…”

Section: Introductionmentioning

confidence: 99%

Application of CAX system for design and analysis of plastic parts manufactured by injection moulding

Mircheski

Łukaszewicz

Trochimczuk

et al. 2019

Engineering for Rural Development

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The purpose of the paper is to present the design of a new plastic part and injection process simulation. Workflow in virtual modelling and simulations in CAx system was presented on an example of the trolley plastic car for kids. The model of the plastic car was designed and simulated to determine the injection parameters in SolidWorks environment. Based on the 3D model of the product the mould tool was created. From the virtual testing the most suitable injection point location, material temperature as well as the fill time and required injection pressure have been specified. With these results the designers can avoid anomalies or defects in real plastic things with the actual injection process parameters, like: air traps, weld lines and sink marks. Such analyses allow the designer to develop a proper mould 3D model, to save the mould setup time as well as to reduce the cost for manufacturing the mould.

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Section: Introductionmentioning

confidence: 99%

Application of CAX system for design and analysis of plastic parts manufactured by injection moulding

Mircheski

Łukaszewicz

Trochimczuk

et al. 2019

Engineering for Rural Development

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“…For the workpiece in this paper, the datum plane construction and the pre-processing of the workpiece surface are simultaneous. One of the tasks of the pre-processing is to guarantee the quality of current CAD model of the workpiece, to avoid some common mistakes such as topological fragmentation and gaps [24,27]. Another task is to make the contour curve C 1 lie in the constructed datum plane through extending and trimming the current workpiece surfaces so that the subsequent boundary curve design could be limited to 2-D space and the design complexity would be reduced.…”

Section: Boundary Curve Designmentioning

confidence: 99%

“…In fact, in the perspective of CAD modeling, the modeling strategy above could only ensure the accuracy of geometric shape, but not necessarily meet the requirements of subsequent simulation and optimization, because their modeling strategy did not take the design/analysis intent [18][19][20][21], reusability [22,23] and model quality [24] into account. Although this does not affect the first surface construction, it will lead to cumbersome modification iteration and optimization [24][25][26]. In addition, the addendum surfaces mentioned above are mainly aimed at workpiece with closed contour, which is not suitable for hatch hollow parts with semi-opening contour.…”

Section: Introductionmentioning

confidence: 99%

Smoothing Parametric Design of Addendum Surfaces for Sheet Metal Forming

Tao

et al. 2020

Chin. J. Mech. Eng.

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The manual design of addendum surfaces on common CAD platforms is very tedious which requires many trialscorrections, which will certainly affect the construction efficiency and quality of addendum surfaces, and then affect the formability and quality of the workpiece in the process of sheet forming. In this paper, an automatic procedure based on parametric design method is proposed for the rapid construction of the addendum surfaces. The kernel of the parametric method is constructing boundary curves based on the shape of surfaces of workpiece and designing guide curves based on Hermite curve interpolation. By some simple parameters, the shape of the addendum surfaces could be controlled and adjusted easily. In addition, a minimum energy optimization method is employed to further optimize the constructed addendum surface. A finite element analysis for the sheet forming process is performed to evaluate the forming quality of constructed addendum surfaces. The instance illustrates that the addendum surface constructed by the proposed method could ensure both the overall smoothing of surfaces and the final forming quality, and it has a good effect on springback after forming. This research proposes a smoothing parametric design method for addendum surfaces construction which could construct and optimize addendum surfaces rapidly.

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“…The CAx (CAD/CAM/CAE etc.) techniques are widely used in the mechanical engineering field [16][17][18][19]. The main reason of using CAx tools is primarily reduction time-to-market of new product.…”

Section: Fig 1 Influence Of Chosen Factors On Processing Shrinkage mentioning

confidence: 99%

Application of modern measurement techniques for analysis of injection moulding shrinkage

Jóźwik

Tofil

Łukaszewicz

2019

Engineering for Rural Development

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The process of polymer injection moulding is complex and complicated, therefore it is characterised by a number of technological and material parametersthat influence the product quality. Setting the best injection conditions requires knowledge of the processing properties of the material, mould shape and technological capacity of the injection moulding machine. Injection shrinkage, as undesirable phenomenon, causes changes of the shape and dimensions of the injection moulding; therefore, it is one of the most important problems that have to be solved, both at the phase of mould designing and at selecting the technological parameters of injection. The paper presents classification of injection moulding shrinkage as well as factors influencing the value of the shrinkage. The conducted experimental tests were related to selected topics connected with the injection process and took into account the change of the processed material characteristics (type and amount of filler) and change of certain, relatively the simplest to regulate, injecting parameters (injection time and cooling of the piece in a mould). Geometrical dimensions of the injection mouldings produced from polypropylene filled with glass fibre were measured using two methods: tactile (electronic measuring instrument) and contactless (3D scanning). The analysis of injection shrinkage illustrates that an effective influence on its value is possible by both choosing appropriate conditions of the injection within the technical range of the machine, as well as, if needed, the processing properties of material can be modified in order to obtain a moulded piece of set geometrical and strength properties. After the analysis of the results, the connection between the injection moulding shrinkage and the content of the filler and the chosen parameters of injection was established.

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A survey on 3D CAD model quality assurance and testing tools

Cited by 54 publications

References 109 publications

Application of CAX system for design and analysis of plastic parts manufactured by injection moulding

Application of CAX system for design and analysis of plastic parts manufactured by injection moulding

Smoothing Parametric Design of Addendum Surfaces for Sheet Metal Forming

Application of modern measurement techniques for analysis of injection moulding shrinkage

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