Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents

Kabanemi, Kalonji K.; Marcotte, Jean-Philippe; Hétu, J.‐F.; Worgull, Matthias; Heckele, M.

doi:10.3139/217.2227

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…Selfassembled n-octadecyltrichlorosilane was also used to coat Si mold for the reduction of adhesion between the mold and patterned polymers [75,76]. The problem of frictional contact during demolding stage was simulated by Kabanemi et al [77]. A modified Coulomb's law of dry friction was used and the friction was demonstrated to strongly influence the overall deformation during cooling the inside mold.…”

Section: Process Study Of P2p Micro Hot Embossingmentioning

confidence: 99%

Micro hot embossing of thermoplastic polymers: a review

Peng

Deng

et al. 2013

J. Micromech. Microeng.

212

157

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Micro hot embossing of thermoplastic polymers is a promising process to fabricate high precision and high quality features in micro/nano scale. This technology has experienced more than 40 years development and has been partially applied in industrial production. Three modes of micro hot embossing including plate-to-plate, roll-to-plate and roll-to-roll have been successively developed to meet the increasing demand for large-area patterned polymeric films. This review surveys recent progress of micro hot embossing in terms of polymeric material behavior, embossing process and corresponding apparatus. Besides, challenges and innovations in mold fabrication techniques are comprehensively summarized and industrial applications are systematically cataloged as well. Finally, technical challenges and future trends are presented for micro hot embossing of thermoplastic polymers.

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Section: Process Study Of P2p Micro Hot Embossingmentioning

confidence: 99%

Micro hot embossing of thermoplastic polymers: a review

Peng

Deng

et al. 2013

J. Micromech. Microeng.

212

157

View full text Add to dashboard Cite

show abstract

“…An automatic procedure has been developed in order to track the nonlinear boundary conditions at the interface. We adopt here the procedure developed by Brunet and Kabanemi et al . In that procedure, the decision on whether a contact node is releasing or is in sticking or sliding condition is based on the following decision tree: If f n ≥ 0 the node is assumed to have experienced tension and in this case the penalty parameters and the normal and tangential contact force are set to zero, to release the node. If f n < 0 and ∣ f t ∣ < μ s ∣ f n ∣ the node continues to stick and Eqs .…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…An automatic procedure has been developed in order to track the nonlinear boundary conditions at the interface. We adopt here the procedure developed by Brunet [26] and Kabanemi et al [27]. In that procedure, the decision on whether a contact node is releasing or is in sticking or sliding condition is based on the following decision tree:…”

Section: Solution Procedures For the Contact Problem Between Parison Amentioning

confidence: 99%

Numerical simulation of suction blow molding process for producing curved ducts

Kabanemi

Marcotte

2018

Polymer Engineering & Sci

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During suction blow molding process, the extruded parison undergoes twisting deformation within the mold cavity, as the air drawing flow around the deforming parison exerts non‐uniform shear stresses on its surface. Such twisting deformation can compromise the specific radial and circumferential variations in parison thickness that are intentionally generated during extrusion. This research is devoted in developing a fluid–structure interaction model for predicting parison deformation during suction blow molding process, with a specific emphasis on the suction stage. A fluid flow model, based on Hele‐Shaw approximations, is formulated to simulate the air drag force exerted on the parison surface. The rheology of the material of the parison is assumed to obey the viscoelastic K‐BKZ model. As the suction process also involves the sliding of the parison within the mold cavity, a modified Coulomb's law of dry friction is used to simulate the frictional contact between parison and mold. The numerical results of this study allowed identifying a clear correlation between the twisting deformation undergone by the parison during the suction stage, also observed experimentally and the design parameters, namely, the air drawing speed, the geometry of the duct mold cavity, and the parison/mold eccentricity. POLYM. ENG. SCI., 59:418–434, 2019. © 2018 Her Majesty the Queen in Right of Canada

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“…The relationship between demolding, feature geometry, and demolding temperature has been widely investigated (Dirckx & Hardt, 2011;Kabanemi et al, 2009;Saha et al, 2011). Thirdly, recovery may occur after separating the mold and the substrate, causing stability problems of embossing features.…”

Section: P2p Hot Embossingmentioning

confidence: 99%

Embossing Process

Lin

2016

Printing on Polymers

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Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents

Cited by 6 publications

References 9 publications

Micro hot embossing of thermoplastic polymers: a review

Micro hot embossing of thermoplastic polymers: a review

Numerical simulation of suction blow molding process for producing curved ducts

Embossing Process

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