Advanced Polymeric Composite Product for Automotive Application

2021 ◽  
Vol 396 (1) ◽  
pp. 2000304
Author(s):  
Sorin Mihai Ion ◽  
Florin Tache ◽  
Razvan Adrian Mahu ◽  
Constantin Gheorghe Opran
Keyword(s):  
Polymeric Composite ◽  
Automotive Application ◽  
Composite Product

scholarly journals Complex Micro Machining of an Injection Mold Surface for a Conductive Polymeric Composite Product

2019 ◽  
Vol 290 ◽  
pp. 03015
Author(s):  
Daniiel Serban ◽  
Constantin Gheorghe Opran
Keyword(s):  
Laser Beam ◽  
Polymeric Composite ◽  
Micro Milling ◽  
Surface Pattern ◽  
Injection Mold ◽  
Mold Surface ◽  
Micro Machining ◽  
Machined Surface ◽  
Research Activities ◽  
Composite Product

Hydrogen and fuel cell technologies were identified amongst new renewable energy technologies which contribute strongly to mitigating climate change. Important research activities were directed to the injection molded bipolar plates made by conductive polymeric composites. The mold surface quality can help obtaining better conductivity. In this paper are presented the experiments regarding complex micro-machining of the surfaces of an injection mold for a conductive polymeric composite product by micro-milling and for finishing and cleaning by laser beam micro-machining. The laser ablation consists in removing material from a solid surface by irradiating it with a laser beam, in successive layers in order to achieve complex geometries with accuracy of about micrometres. Injection moulding experiments evidenced the very good replication of the micro-machined surface pattern.

Research of Safe Technology of Impregnation of Heated Reinforcing Materials with Binder

2021 ◽  
Vol 1038 ◽  
pp. 119-128
Author(s):  
Andrii Kondratiev ◽  
Oleksandr Haidachuk ◽  
Anton Tsaritsynskyi
Keyword(s):  
Manufacturing Process ◽  
Polymeric Composite ◽  
Polymerization Reaction ◽  
Safe Technology ◽  
Operational Characteristics ◽  
Working Shift ◽  
Product Manufacturing ◽  
Composite Product ◽  
Additional Costs ◽  
Reinforcing Material

Prepreg manufacturing process is one of the most important preparatory technological processes, quality of which has the decisive influence on the physical, mechanical, processing and operational characteristics of the finished composite product. However, manufacturing of prepregs is associated with a number of harmful factors, negatively affecting the participants in the technological process and the environment. Consequently, significant additional costs are required in order to ensure specified maximum permissible levels and concentrations of the harmful products released by the components of polymeric composite materials in the product manufacturing process. The paper deals with the study of peculiarities and efficiency of impregnation of the heated reinforcing material using solvent-free binder. The method for predicting the optimal process parameters of binder solutions for impregnation of prepregs, taking into account the safety of production activity, has been developed. The problem of thermal conductivity from the heated reinforcing material to the binder, which allowed establishing the law of temperature distribution over the depth of the impregnating bath, depending on the duration of continuous impregnation, has been solved. It is found that the binder, with the duration of impregnation even within one working shift, heats up to the temperatures excluding the formation of centers of exothermic polymerization reaction in it. It indicates the availability of the effective regimes of impregnation using the method under study. The paper proposes the practical ways of improvement of the investigated method of impregnation by varying the wavelength, programmed change of the temperature of the reinforcing material at the entry to the bath, and setting of the optimal coordinates of the binder supply as it is drawn in the process of continuous impregnation of the reinforcing material.

IDENTIFIKASI KARAKTERISTIK MEKANIS BANTALAN LUNCUR MOTOR STARTER DARI SERBUK TEMBAGA ALUMUNIUM

2013 ◽  
Vol 12 (3) ◽  
Author(s):  
Syamsul Rizal ◽  
Amin Suhandi
Keyword(s):  
Mechanical Test ◽  
Life Time ◽  
Extrusion Process ◽  
Automotive Application ◽  
Powder Metallurgy Method ◽  
Powder Metal ◽  
Time Operation ◽  
Different Temperatures ◽  
Automotive Parts ◽  
Solid Form

There are many attempts to support the development of industry in Indonesia, especially on automotive sector, one of them is by replacing import components with local component products. Bushing is one of imported component that widely used on automotive application including motor strater. Bushing usually made of  copper alloy such as brass, bronz or babbit in a solid form by casting or extrusion process. In this research powder metal technology is used to process Cu-Al powder to become slide bearing of motor starter. It is expected that powder metal process not only increasing local content in automotive parts but also providing better quality by increasing life time of bushing compared to ordinary one. Cu-Al metal powder was compacted at various pressure, i.e: 250 MPa, 350 MPa and 450 MPa, and then all specimens were sintered at different temperatures : 4000C, 5000C dan 6000C for 1 hour.  After sintering specimens were air cooled to room temperature. After physical and mechanical test it can be deduced that bushing made by powder metallurgy method could increase its mechanical properties and as aresult improve its life time operation.  

Peculiarities of tool material wear at polymeric composite blank cutting

2018 ◽  
Vol 2018 (7) ◽  
pp. 27-31
Author(s):  
Юрий Зубарев ◽  
Yuriy Zubarev ◽  
Александр Приемышев ◽  
Alexsandr Priyomyshev
Keyword(s):  
Tool Wear ◽  
Tool Material ◽  
Polymeric Composite ◽  
Physical Models ◽  
Technological Parameters ◽  
Tool Materials ◽  
Materials Used ◽  
The Impact ◽  
Material Wear

Tool materials used for polymeric composite blank machining, kinds of tool material wear arising at machining these blanks, and also the impact of technological parameters upon tool wear are considered. The obtained results allow estimating the potentialities of physical models at polymeric composite blanks cutting.

A new method of manufacturing products from polymeric composite materials

2020 ◽  
Author(s):  
D. A. Negrov ◽  
E. N. Eremin ◽  
A. A. Novikov ◽  
V. Yu. Putintsev
Keyword(s):  
Composite Materials ◽  
Polymeric Composite ◽  
New Method ◽  
Polymeric Composite Materials
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