An investigation of parting direction based on dexel model and fuzzy decision making

Chen, Y. H.; Wang, Y.Z.; Leung, T.M.

doi:10.1080/002075400188898

Cited by 26 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another discrete model (Chen 1997) uses fuzzy logics to obtain adequate parting directions. Similar to this approach is the use of dexel models and fuzzy logic introduced by Chen (1997Chen ( , 2000.…”

Section: Safe Demouldingmentioning

confidence: 99%

Manufacturability analysis of injected parts based on a mid-surface approach

Petrovic

Castellano

Carot

2009

Journal of Engineering Design

View full text Add to dashboard Cite

In order to save cost and time, the manufacturability of injected parts should be analysed and estimated in early design stages using some appropriate method of part representation. This paper presents the use of the mid-surface of a part to perform automatic assessment of the manufacturability of injected parts. This approach allows the manufacturability to be analysed in a short time, so that the analysis can be integrated into the stage of part modelling. The mid-surface is homotopically identical to the solid model of the part, and it can substitute the corresponding solid model in the evaluation of aspects of manufacturability such as safe demoulding. In other aspects, such as partial cycle times and abrupt changes in thickness, mid-surface offers more possibilities than a solid model because it contains an explicitly defined thickness distribution. Furthermore, mid-surface can be used for the purpose of guiding design correction. This paper outlines the foundations underlying the analysis of manufacturability aspects based on a mid-surface approach.

show abstract

Section: Safe Demouldingmentioning

confidence: 99%

Manufacturability analysis of injected parts based on a mid-surface approach

Petrovic

Castellano

Carot

2009

Journal of Engineering Design

View full text Add to dashboard Cite

show abstract

“…As there can be more than one parting line, the best is selected using the criteria proposed by Ravi and Srinivasan (1990). The slicing method was also used by Chen et al (2000) to determe the parting direction and parting line. They employed a fuzzy heuristic in selecting the parting direction from the three principal directions.…”

Section: Related Workmentioning

confidence: 99%

A new approach to parting surface design for plastic injection moulds using the subdivision method

2005

International Journal of Production Research

View full text Add to dashboard Cite

This paper proposes a new approach to automate the design of parting surfaces for plastic injection moulds. The new method tackles the issue of the automatic generation of a polygonal complex that is required for boundary curve interpolation. The mesh that defines the 'interior' of the surface patch is generated using medial axis transform and optimization. Upon subdivision, the mesh generates a smooth surface patch that connects to neighbouring patches to form the entire parting surface. This new method has been integrated with our previous result to develop an experimental system that automates parting surface design for a plastic part with a complex parting line. The major advantage of this new approach is that the subdivision surface is generated by a standard subdivision scheme which facilitates the development of any downstream applications, such as CNC toolpath extraction, on the surface. Examples and a design case study are presented to demonstrate the major steps and verify the feasibility of the new approach.

show abstract

“…Under the same rationale, Nee et al 9 described a method to determine the parting directions of injection-molded parts. Chen et al 10 proposed a method to automatically determine feasible parting directions. In their research, three possible parting directions were defined by the surface normal vectors of a bounding box and estimated based on the dexel model and fuzzy decision making.…”

Section: Introductionmentioning

confidence: 99%

A multiple slicing approach to automatic generation of parting curves

Lin

Quang

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

A new slicing algorithm that uses multiple sets of cutting planes to automatically determine parting curves for three-dimensional parts is proposed. In this algorithm, one set of cutting planes is used to generate the slicing profiles, and two others are used to determine the intersection points with the inner and outer loops of the parting curves. The algorithm provides a highly effective solution for handling complicated models that contain free-form surfaces. The features of the algorithm are highlighted in three case studies using tessellated geometry in STL file format as the input. The resultant parting curves overcome many problems inherent in the current methods and can be used by various downstream computer-aided design systems for three-dimensional mold design.

show abstract

An investigation of parting direction based on dexel model and fuzzy decision making

Cited by 26 publications

References 0 publications

Manufacturability analysis of injected parts based on a mid-surface approach

Manufacturability analysis of injected parts based on a mid-surface approach

A new approach to parting surface design for plastic injection moulds using the subdivision method

A multiple slicing approach to automatic generation of parting curves

Contact Info

Product

Resources

About