An Investigation on Vibration Welding of Amorphous and Semicrystalline Polymers

Pal, Kaushik; Panwar, Vinay; Friedrich, Sven; Gehde, Michael

doi:10.1080/10426914.2015.1019111

Cited by 26 publications

(4 citation statements)

References 23 publications

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“…Both ultrasonic and vibration methods are quite easy and applicable for automation, they are cheap and provide fast cycle (Leisen, 2017;Benatar, 2015). The methods simply based on heat generation from frictional force and then joining the parts under the pressure (Pal, 2016;Parmar, 2016). Bonding of two parts is done by friction forces between the part's surfaces.…”

Section: Figurementioning

confidence: 99%

Plastik Birleştirme Yöntemleri: Ultrasonik ve Vibrasyon Kaynağı

KIYILI

2023

UUJFE

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Plastic welding is a common method for manufacturing parts that can’t be molded and has a complex geometry such as the part that has undercuts. The process is suitable for mass production, cheap and meets automotive requirements. The process helps the zero-emission target of the automotive industry, due to the biggest obstacle of the plastic use in this sector was the moldability of the complex geometries. Most of the engine parts such as thermostat, water pump etc. can’t be molded as one piece. These engine components are manufactured by helping the plastic welding and decrease the weight of the automobile, therefore, improving fuel efficiency. Plastic welding technology has become more important especially in electrical vehicles, because metal to plastic replacement has a significant role in decreasing the weight of the vehicle. Selecting the welding method according to the polymer properties and the geometry of parts are the most important factors for the application area. All of the welding methods are basically based on the remelting of the welding surfaces of the parts and the consolidation of them under the pressure. In this paper, the vibration welding and the ultrasonic welding methods have been inspected. The most effective parameters of both processes have been discussed and shown.

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Section: Figurementioning

confidence: 99%

Plastik Birleştirme Yöntemleri: Ultrasonik ve Vibrasyon Kaynağı

KIYILI

2023

UUJFE

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“…Low shrinkage results in a minimum level of residual stresses in the printed parts, eliminating deformation and delamination, while low melting temperature allows higher productivity of the printing processes [5]. In the past, large plastic components with functional or esthetic parts required a two-piece assembly -an injection molded part with mechanical interlocking, adhesive bonding or welding [6][7][8]. These techniques can be time-consuming and labor-intensive [9].…”

Section: Introductionmentioning

confidence: 99%

Combination of 3D printing and injection molding: Overmolding and overprinting

Boros¹,

Rajamani²,

Kovács³

2019

Express Polym. Lett.

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Nowadays, two of the most important polymer processing technologies are injection molding and 3D printing. Injection molding is ideal for mass production, while 3D printing is ideal for producing products with a complicated geometry. When these two technologies are combined, such complex products can be manufactured economically that would be too costly if produced traditionally. We present the possibilities of combining injection molding and 3D printing. We introduced a novel concept to study and compare the bonding strength of polylactic acid (PLA) parts prepared by overprinting and overmolding. We developed a special injection mold for overmolding, with which we injection molded ribs on a preform. The geometry of the overprinted part was similar for comparability. The thermal properties of the samples were determined by differential scanning calorimetry and thermogravimetric analysis. To analyze the strength of mechanical bonding, we developed a rib pull-off test. We tested all four manufacturing combinations with this test: overmolding onto a molded or printed plate and also overprinting onto a molded or printed plate.

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“…Thus, welding processes provide great advantages compared to adhesive bonding or mechanical connections. The vibration welding process in particular is characterized by short cycle times, high reproducibility and process stability as well as the suitability for large joining surfaces [5]. Nevertheless, the process is limited to joining of adhesion compatible material combinations.…”

Section: Introductionmentioning

confidence: 99%

Influence of the thermomechanical properties on the joining of adhesion incompatible polymers by form-fit using the vibration welding process

Wolf¹,

Hertle²,

Drummer³

2019

Express Polym. Lett.

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In the product manufacturing cycle, the joining of polymers often takes a central position. Vibration welding is characterized by short cycle times, high process flexibility and stability as well as by the achievement of high bond strengths without using additives. However, the vibration welding process is clearly restricted by a necessary adhesion compatibility of the joining partners. By means of structuring one joining partner and subsequent filling of the structures by a second joining partner, the joining by form-fit using vibration welding enables the combination of adhesion incompatible polymers. Within these investigations, bonds between adhesion incompatible semi-crystalline thermoplastics were generated based on mechanical adhesion. Also semi-crystalline and amorphous polymers could be connected for the first time without any connecting elements, although they conventionally do not show mechanical resilience. The analysis of the thermomechanical material properties and the resulting multimaterial link enabled the determination of first influences on the resulting formfit connection caused by the occurring joining zone temperature.

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An Investigation on Vibration Welding of Amorphous and Semicrystalline Polymers

Cited by 26 publications

References 23 publications

Plastik Birleştirme Yöntemleri: Ultrasonik ve Vibrasyon Kaynağı

Plastik Birleştirme Yöntemleri: Ultrasonik ve Vibrasyon Kaynağı

Combination of 3D printing and injection molding: Overmolding and overprinting

Influence of the thermomechanical properties on the joining of adhesion incompatible polymers by form-fit using the vibration welding process

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