Feasibility and Process capability of polymer additive injection molds with slide technology

Schuh, Günther; Bergweiler, Georg; Lukas, Gerret; Abrams, Josef A.

doi:10.1016/j.procir.2020.03.057

Cited by 11 publications

(7 citation statements)

References 4 publications

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“…2 represents a pair of polymer mold inserts from a case study with particularly distinctive geometric structures. After analyzing the guidelines from literature research [8][9][10][11][12][13], the geometric structures are classified into the following categories.…”

Section: Geometric Structures In Additive Toolingmentioning

confidence: 99%

Review and Development of Design Guidelines for Additive Tooling of Injection Molds Using PolyJet Modelling

Junk,

Schrock,

Schmieder

2023

Springer Tracts in Additive Manufacturing

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Due to globalization and the resulting increase in competition on the market, products must be produced more and more cheaply, especially in series production, because buyers expect new variants or even completely new products in ever shorter cycles. Injection molding is the most important production process for manufacturing plastic components in large quantities. However, the conventional production of a mold is extremely time-consuming and costly, which creates a contradiction to the fast pace of the market. Additive tooling is an area of application of additive manufacturing, which in the field of injection molding is preferably used for the prototype production of mold inserts. This allows injection molding tools to be produced faster and more cheaply than through the subtractive manufacturing of metal tools. Material Jetting processes using polymers (MJT-UV/P), also called Polyjet Modeling (PJM), have a great potential for use in additive tooling. Due to the poorer mechanical and thermal properties compared to conventional mold insert materials, e.g. steel or aluminum, the previously used design principles cannot be applied. Accordingly, new design guidelines are necessary, which are developed in this paper. The necessary information is obtained with the help of a systematic literature research. The design guidelines are mapped in a uniform design guide, which is structured according to the design process of injection molds. The guidelines do not only refer to the constructive design of the injection mold or the polymer mold insert, but to the entire design process and describe the four phases of planning, conception, development and realization. Particular attention is paid to the special geometric designs of a polymer mold insert and the thermomechanical properties of the mold insert materials. As a result, design guidelines are available that are adapted to the special requirements of additive tooling of molds inserts made of plastics for injection molding.

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Section: Geometric Structures In Additive Toolingmentioning

confidence: 99%

Review and Development of Design Guidelines for Additive Tooling of Injection Molds Using PolyJet Modelling

Junk,

Schrock,

Schmieder

2023

Springer Tracts in Additive Manufacturing

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“…In contrast to conventional tooling, with additive tooling the tool is built up layer by layer, which makes it possible to realise complex geometries. Common additive processes for manufacturing mould inserts are based on the principle of photopolymerisation (Figure 2) (Schuh et al 2020;). These offer good surface quality and manufacturing accuracy for additive processes (Burggräf et al 2022;Zhang et al 2018;Mendible et al 2017).…”

Section: Additive Tooling For Injection Mouldingmentioning

confidence: 99%

“…However, the price depends strongly on the size and complexity of the mould or mould inserts (Schrock et al, 2020). Depending on various process parameters, production output in the twoto three-digit range can usually be achieved Schuh, Bergweiler, Lukas, & Abrams, 2020). Due to the prompt availability and usually simpler realisability, possible solutions can be tried out more quickly.…”

Section: Additive Tooling For Injection Mouldingmentioning

confidence: 99%

A Method for Additive Tooling in Integrated Product Development

Schrock¹,

Junk²,

Albers³

2022

How Product and Manufacturing Design Enable Sustainable Companies and Societies

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In the context of successful product development, continuous validation plays a central role in matching customer requirements and product characteristics. However, the early phase of product development in particular is characterised by special challenges, which are due to a high degree of uncertainty and a lack of resources, such as a lack of prototypes. Additive Tooling (AT) offers a quick and cost-effective way of producing injection moulded products and high fidelity prototypes using the injection moulding process and provides a promising approach for addressing these challenges. Furthermore, it allows different product variants to be tested early in the development process, thus generating meaningful insights into product properties and the necessary production system. As part of the validation process, AT is embedded into a complex process environment. In many cases, the use of AT in product development practice is not target-oriented as it also lacks methodological support. This paper presents a method for supporting the application of AT-based validation environments in integrated product development. Based on a case study, relevant process steps, activities and possible barriers in the realisation of an injection-moulded product are identified and analysed. The practical example essentially shows the need for verification of the AT application. Based on the identified requirements and sub-activities, a systematic for Additive Tooling is then derived and described. The aim of the AT-systematic is to support the targetoriented application of Additive Tooling to obtain physical prototypes at an early stage and to shorten validation cycles. Finally, it is shown how the AT-systematic is located in the integrated Product engineering Model (iPeM).

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“…Schuh et al [19] haben die Machbarkeit und Prozesssicherheit von einfachen Schieberwerkzeugen untersucht. Dabei wurden Standzeiten von rund 100 Zyklen erreicht.…”

Section: Technische Betrachtungunclassified

Systematische Erfassung von Einflussfaktoren für das Additive Tooling von Spritzgusswerkzeugen

Schrock¹,

Proksch²,

Rapp³

et al. 2021

DS 111: Proceedings of the 32nd Symposium Design for X

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Feasibility and Process capability of polymer additive injection molds with slide technology

Cited by 11 publications

References 4 publications

Review and Development of Design Guidelines for Additive Tooling of Injection Molds Using PolyJet Modelling

Review and Development of Design Guidelines for Additive Tooling of Injection Molds Using PolyJet Modelling

A Method for Additive Tooling in Integrated Product Development

Systematische Erfassung von Einflussfaktoren für das Additive Tooling von Spritzgusswerkzeugen

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