Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings

F.B.  Hasnaes; Guido Tosello; Matteo Calaon; R.  Elsborg; Hans Nørgaard Hansen

Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings

F.B. Hasnaes, Guido Tosello, Matteo Calaon, R. Elsborg, Hans Nørgaard Hansen

Ortofon A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

The micro injection moulding (μIM) process for the production of micro rings in thermoplastic elastomers (TPE) was investigated and optimized. The objective was to minimize the formation of air entrapments and the depth of micro weld line created on the surface of the TPE micro moulded rings. The defects were investigated by both experiments and numerical simulations of the μIM process. The results obtained from the simulation software were verified by comparison with the actual moulded parts. It was found that the simulation was accurate in the prediction of air entrapments and weld line placement. The μIM processing parameters had a large influence on the weld line depth and the air entrapment. In particular, it was found that low settings of the injection speed and of the clamping force increased the air evacuation from the cavity, thus minimizing the weld line depth and the presence of air entrapment defects.

Original language	English
Title of host publication	Proceedings of the 4M/ICOMM2015 Conference
Editors	Massimiliano Annoni, Irene Fassi, Gloria J. Wiens, Stefan Dimov
Publisher	Research Publishing Services
Publication date	2015
Pages	266-267
Article number	065
ISBN (Electronic)	978-981-09-4609-8
Publication status	Published - 2015
Event	4M/ICOMM2015 Conference - Milan, Italy Duration: 31 Mar 2015 → 2 Apr 2015 http://www.4m-association.org/conference/2015

Conference

Conference	4M/ICOMM2015 Conference
Country/Territory	Italy
City	Milan
Period	31/03/2015 → 02/04/2015
Internet address	http://www.4m-association.org/conference/2015

Keywords

Nano moulding
Nano metrology
Micro and nano tooling

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@inproceedings{4d711f11d85b428287a50a281a739c17,

title = "Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings",

abstract = "The micro injection moulding (μIM) process for the production of micro rings in thermoplastic elastomers (TPE) was investigated and optimized. The objective was to minimize the formation of air entrapments and the depth of micro weld line created on the surface of the TPE micro moulded rings. The defects were investigated by both experiments and numerical simulations of the μIM process. The results obtained from the simulation software were verified by comparison with the actual moulded parts. It was found that the simulation was accurate in the prediction of air entrapments and weld line placement. The μIM processing parameters had a large influence on the weld line depth and the air entrapment. In particular, it was found that low settings of the injection speed and of the clamping force increased the air evacuation from the cavity, thus minimizing the weld line depth and the presence of air entrapment defects.",

keywords = "Nano moulding, Nano metrology, Micro and nano tooling",

author = "F.B. Hasnaes and Guido Tosello and Matteo Calaon and R. Elsborg and Hansen, {Hans N{\o}rgaard}",

year = "2015",

language = "English",

pages = "266--267",

editor = "Massimiliano Annoni and Fassi, {Irene } and Wiens, {Gloria J. } and Stefan Dimov",

booktitle = "Proceedings of the 4M/ICOMM2015 Conference",

publisher = "Research Publishing Services",

note = "4M/ICOMM2015 Conference ; Conference date: 31-03-2015 Through 02-04-2015",

url = "http://www.4m-association.org/conference/2015",

}

Hasnaes, FB, Tosello, G , Calaon, M, Elsborg, R & Hansen, HN 2015, Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings. in M Annoni, I Fassi, GJ Wiens & S Dimov (eds), Proceedings of the 4M/ICOMM2015 Conference., 065, Research Publishing Services, pp. 266-267, 4M/ICOMM2015 Conference, Milan, Italy, 31/03/2015.

Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings. / Hasnaes, F.B. ; Tosello, Guido ; Calaon, Matteo et al.
Proceedings of the 4M/ICOMM2015 Conference. ed. / Massimiliano Annoni; Irene Fassi; Gloria J. Wiens; Stefan Dimov. Research Publishing Services, 2015. p. 266-267 065.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings

AU - Hasnaes, F.B.

AU - Tosello, Guido

AU - Calaon, Matteo

AU - Elsborg, R.

AU - Hansen, Hans Nørgaard

PY - 2015

Y1 - 2015

N2 - The micro injection moulding (μIM) process for the production of micro rings in thermoplastic elastomers (TPE) was investigated and optimized. The objective was to minimize the formation of air entrapments and the depth of micro weld line created on the surface of the TPE micro moulded rings. The defects were investigated by both experiments and numerical simulations of the μIM process. The results obtained from the simulation software were verified by comparison with the actual moulded parts. It was found that the simulation was accurate in the prediction of air entrapments and weld line placement. The μIM processing parameters had a large influence on the weld line depth and the air entrapment. In particular, it was found that low settings of the injection speed and of the clamping force increased the air evacuation from the cavity, thus minimizing the weld line depth and the presence of air entrapment defects.

AB - The micro injection moulding (μIM) process for the production of micro rings in thermoplastic elastomers (TPE) was investigated and optimized. The objective was to minimize the formation of air entrapments and the depth of micro weld line created on the surface of the TPE micro moulded rings. The defects were investigated by both experiments and numerical simulations of the μIM process. The results obtained from the simulation software were verified by comparison with the actual moulded parts. It was found that the simulation was accurate in the prediction of air entrapments and weld line placement. The μIM processing parameters had a large influence on the weld line depth and the air entrapment. In particular, it was found that low settings of the injection speed and of the clamping force increased the air evacuation from the cavity, thus minimizing the weld line depth and the presence of air entrapment defects.

KW - Nano moulding

KW - Nano metrology

KW - Micro and nano tooling

M3 - Article in proceedings

SP - 266

EP - 267

BT - Proceedings of the 4M/ICOMM2015 Conference

A2 - Annoni, Massimiliano

A2 - Fassi, Irene

A2 - Wiens, Gloria J.

A2 - Dimov, Stefan

PB - Research Publishing Services

T2 - 4M/ICOMM2015 Conference

Y2 - 31 March 2015 through 2 April 2015

ER -

Investigation of air entrapment and weld line defects in micro injection moulded thermoplastic elastomer micro rings

Abstract

Conference

Keywords

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