NDLI: Effective fast-response pressure control for thin-wall gas-assisted injection molding

Content Provider	Springer Nature Link
Author	Wang, Shih Ming Liaw, Wei Lianq Chen, Shia Chung
Copyright Year	2006
Abstract	As compared with the traditional injection molding, gas-assisted injection molding (GAIM) exhibits more advantages such as requiring lower injection pressure, reducing part weight, minimizing residual stress, and improving part quality, etc. When GAIM is applied to thin-wall parts, the required filling time (usually less than 0.3 seconds) becomes a critical factor for successful molding. In this study, a new pressure control system that operates with much less response time than what most commercial gas-assisted units need was developed. The new control system consists of a fast interpolation device for fast approaching the set pressure and a fast-response pressure control valve incorporated with a PID controller to accelerate and fine-tune the steady output. To verify the effectiveness and performance of the proposed system, several experiments were conducted. The experimental results have shown that the proposed control system can effectively shorten the response time so that the filling time can be less than 0.3 s to provide good quality for the thin-wall injected products.
Starting Page	890
Ending Page	898
Page Count	9
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	28
Issue Number	9-10
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-01-01
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gas-assisted injection molding Melt Photoelastic PID controller Sensor Industrial and Production Engineering Production/Logistics Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Intelligent control of gas-assisted injection molding control systems

Computing gas/melt free interface of gas-assisted injection molding

Warpage phenomenon of thin-wall injection molding

Quality control using a multivariate injection molding sensor

Quality control of the injection molding process using an EWMA predictor and minimum–variance controller

Mold surface roughness effects on cavity filling of polymer melt in micro injection molding

Surface microstructure replication in injection molding

Model and simulation of water penetration in water-assisted injection molding

Powder injection molding 440C stainless steel

Effective fast-response pressure control for thin-wall gas-assisted injection molding

Similar Documents

Intelligent control of gas-assisted injection molding control systems

Computing gas/melt free interface of gas-assisted injection molding

Warpage phenomenon of thin-wall injection molding

Quality control using a multivariate injection molding sensor

Quality control of the injection molding process using an EWMA predictor and minimum–variance controller

Mold surface roughness effects on cavity filling of polymer melt in micro injection molding

Surface microstructure replication in injection molding

Model and simulation of water penetration in water-assisted injection molding

Powder injection molding 440C stainless steel

Effective fast-response pressure control for thin-wall gas-assisted injection molding