Development of CAD system based on function features

Sonken Ando, Ryo Ikeda, Hideki Aoyama, Norihito Hiruma

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Three-dimensional CAD systems contribute considerably to the detailed design processes of products. They are applied to the construction of 3D design models which are also utilized for design evaluation using a CAE system and for NC data generation using a CAM system. Since the functions of 3D CAD systems for constructing 3D models are increasingly being enhanced, they enable designers to easily construct 3D product models without design expertise. In detailed design work, designers are required not only to exactly define product shapes but also to assign attribute information such as dimensional tolerance, geometrical tolerance, roughness, machining process to be performed etc., which are essential for the manufacturing process. However, inexperienced designers often find it extremely hard to determine optimum attribute values and design values. In addition, it is more difficult to construct the required die/mold from the desired product shape taking into account forming errors caused by shrinkage during plastic injection and springback during press forming. This paper proposes a method to automatically assign required attribute information to each part of a designed product, to assist the model construction of a die/mold from a product shape, and to provide design support information on each part of a designed product to a designer. The proposed method is realized by assigning a Function Feature to each part; all the function features proposed in this paper are original. A CAD system based on the proposed method for injection molding and press forming was developed, and results of simple design experiments confirmed the usefulness of the CAD system and function features

Original languageEnglish
Title of host publicationKey Engineering Materials
Pages442-446
Number of pages5
Volume447 448
DOIs
Publication statusPublished - 2010
EventICoPE2010 and 13th ICPE International Conference on Precision Engineering - , Singapore
Duration: 2010 Jul 282010 Jul 30

Publication series

NameKey Engineering Materials
Volume447 448
ISSN (Print)10139826

Other

OtherICoPE2010 and 13th ICPE International Conference on Precision Engineering
CountrySingapore
Period10/7/2810/7/30

Fingerprint

Computer aided design
Computer systems
Computer aided engineering
Computer aided manufacturing
Injection molding
Machining
Surface roughness
Plastics
Experiments

Keywords

  • CAD
  • Design
  • Function feature
  • Injection molding
  • Press forming
  • Tolerance

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ando, S., Ikeda, R., Aoyama, H., & Hiruma, N. (2010). Development of CAD system based on function features. In Key Engineering Materials (Vol. 447 448, pp. 442-446). (Key Engineering Materials; Vol. 447 448). https://doi.org/10.4028/www.scientific.net/KEM.447-448.442

Development of CAD system based on function features. / Ando, Sonken; Ikeda, Ryo; Aoyama, Hideki; Hiruma, Norihito.

Key Engineering Materials. Vol. 447 448 2010. p. 442-446 (Key Engineering Materials; Vol. 447 448).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ando, S, Ikeda, R, Aoyama, H & Hiruma, N 2010, Development of CAD system based on function features. in Key Engineering Materials. vol. 447 448, Key Engineering Materials, vol. 447 448, pp. 442-446, ICoPE2010 and 13th ICPE International Conference on Precision Engineering, Singapore, 10/7/28. https://doi.org/10.4028/www.scientific.net/KEM.447-448.442
Ando S, Ikeda R, Aoyama H, Hiruma N. Development of CAD system based on function features. In Key Engineering Materials. Vol. 447 448. 2010. p. 442-446. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.447-448.442
Ando, Sonken ; Ikeda, Ryo ; Aoyama, Hideki ; Hiruma, Norihito. / Development of CAD system based on function features. Key Engineering Materials. Vol. 447 448 2010. pp. 442-446 (Key Engineering Materials).
@inproceedings{388210b2964f4739a6ef92dd6448d138,
title = "Development of CAD system based on function features",
abstract = "Three-dimensional CAD systems contribute considerably to the detailed design processes of products. They are applied to the construction of 3D design models which are also utilized for design evaluation using a CAE system and for NC data generation using a CAM system. Since the functions of 3D CAD systems for constructing 3D models are increasingly being enhanced, they enable designers to easily construct 3D product models without design expertise. In detailed design work, designers are required not only to exactly define product shapes but also to assign attribute information such as dimensional tolerance, geometrical tolerance, roughness, machining process to be performed etc., which are essential for the manufacturing process. However, inexperienced designers often find it extremely hard to determine optimum attribute values and design values. In addition, it is more difficult to construct the required die/mold from the desired product shape taking into account forming errors caused by shrinkage during plastic injection and springback during press forming. This paper proposes a method to automatically assign required attribute information to each part of a designed product, to assist the model construction of a die/mold from a product shape, and to provide design support information on each part of a designed product to a designer. The proposed method is realized by assigning a Function Feature to each part; all the function features proposed in this paper are original. A CAD system based on the proposed method for injection molding and press forming was developed, and results of simple design experiments confirmed the usefulness of the CAD system and function features",
keywords = "CAD, Design, Function feature, Injection molding, Press forming, Tolerance",
author = "Sonken Ando and Ryo Ikeda and Hideki Aoyama and Norihito Hiruma",
year = "2010",
doi = "10.4028/www.scientific.net/KEM.447-448.442",
language = "English",
isbn = "9780878492565",
volume = "447 448",
series = "Key Engineering Materials",
pages = "442--446",
booktitle = "Key Engineering Materials",

}

TY - GEN

T1 - Development of CAD system based on function features

AU - Ando, Sonken

AU - Ikeda, Ryo

AU - Aoyama, Hideki

AU - Hiruma, Norihito

PY - 2010

Y1 - 2010

N2 - Three-dimensional CAD systems contribute considerably to the detailed design processes of products. They are applied to the construction of 3D design models which are also utilized for design evaluation using a CAE system and for NC data generation using a CAM system. Since the functions of 3D CAD systems for constructing 3D models are increasingly being enhanced, they enable designers to easily construct 3D product models without design expertise. In detailed design work, designers are required not only to exactly define product shapes but also to assign attribute information such as dimensional tolerance, geometrical tolerance, roughness, machining process to be performed etc., which are essential for the manufacturing process. However, inexperienced designers often find it extremely hard to determine optimum attribute values and design values. In addition, it is more difficult to construct the required die/mold from the desired product shape taking into account forming errors caused by shrinkage during plastic injection and springback during press forming. This paper proposes a method to automatically assign required attribute information to each part of a designed product, to assist the model construction of a die/mold from a product shape, and to provide design support information on each part of a designed product to a designer. The proposed method is realized by assigning a Function Feature to each part; all the function features proposed in this paper are original. A CAD system based on the proposed method for injection molding and press forming was developed, and results of simple design experiments confirmed the usefulness of the CAD system and function features

AB - Three-dimensional CAD systems contribute considerably to the detailed design processes of products. They are applied to the construction of 3D design models which are also utilized for design evaluation using a CAE system and for NC data generation using a CAM system. Since the functions of 3D CAD systems for constructing 3D models are increasingly being enhanced, they enable designers to easily construct 3D product models without design expertise. In detailed design work, designers are required not only to exactly define product shapes but also to assign attribute information such as dimensional tolerance, geometrical tolerance, roughness, machining process to be performed etc., which are essential for the manufacturing process. However, inexperienced designers often find it extremely hard to determine optimum attribute values and design values. In addition, it is more difficult to construct the required die/mold from the desired product shape taking into account forming errors caused by shrinkage during plastic injection and springback during press forming. This paper proposes a method to automatically assign required attribute information to each part of a designed product, to assist the model construction of a die/mold from a product shape, and to provide design support information on each part of a designed product to a designer. The proposed method is realized by assigning a Function Feature to each part; all the function features proposed in this paper are original. A CAD system based on the proposed method for injection molding and press forming was developed, and results of simple design experiments confirmed the usefulness of the CAD system and function features

KW - CAD

KW - Design

KW - Function feature

KW - Injection molding

KW - Press forming

KW - Tolerance

UR - http://www.scopus.com/inward/record.url?scp=78650569362&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78650569362&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/KEM.447-448.442

DO - 10.4028/www.scientific.net/KEM.447-448.442

M3 - Conference contribution

AN - SCOPUS:78650569362

SN - 9780878492565

VL - 447 448

T3 - Key Engineering Materials

SP - 442

EP - 446

BT - Key Engineering Materials

ER -