Optimal Injection-Molding Conditions for Mechanical Properties of Kenaf Fiber Composite Materials by Taguchi Method

2013 ◽  
Vol 19 (2) ◽  
pp. 478-482 ◽  
Author(s):  
Xiaohang Tuo ◽  
Takahiko Kawai ◽  
Shin-Ichi Kuroda
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Injection Molding ◽  
Taguchi Method ◽  
Fiber Composite ◽  
Kenaf Fiber ◽  
Optimal Injection ◽  
Fiber Composite Materials

scholarly journals A Review on Developments in Manufacturing Process and Mechanical Properties of Natural Fiber Composites

2021 ◽  
Vol 2 (01) ◽  
pp. 13-23
Author(s):  
Md. Maruf Billah ◽  
Md. Sanaul Rabbi ◽  
Afnan Hasan
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Synthetic Fiber ◽  
Manufacturing Processes ◽  
Manufacturing Cost ◽  
Mechanical And Thermal Properties ◽  
Natural Fiber Composite ◽  
Fiber Composite Materials

From the last few decades, the study of natural fiber composite materials has been gaining strong attention among researchers, scientists, and engineers. Natural fiber composite materials are becoming good alternatives to conventional materials because of their lightweight, high specific strength, low thermal expansion, eco-friendly, low manufacturing cost, nonabrasive and bio-degradable characteristics. It is proven that natural fiber is a great alternative to synthetic fiber in the sector of automobiles, railway, and aerospace. Researchers are developing various types of natural fiber-reinforced composites by combining different types of natural fiber such as jute, sisal, coir, hemp, abaca, bamboo, sugar can, kenaf, banana, etc. with various polymers such as polypropylene, epoxy resin, etc. as matrix material. Based on the application and required mechanical and thermal properties, numerous natural fiber-based composite manufacturing processes are available such as injection molding, compression molding, resin transfer molding, hand lay-up, filament welding, pultrusion, autoclave molding, additive manufacturing, etc. The aim of the paper is to present the developments of various manufacturing processes of natural fiber-based composites and obtained mechanical properties.

Current Research and Patents of Plant Fiber Composites

2019 ◽  
Vol 12 (1) ◽  
pp. 37-44
Author(s):  
Jiankang Wang ◽  
Zhijian Li ◽  
Hongwei Lu
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fiber Composite ◽  
Fiber Composites ◽  
Living Environment ◽  
Processing Technology ◽  
Plant Fiber ◽  
Plant Fibers ◽  
Processing Properties ◽  
Fiber Composite Materials

Background: With the improvement of environment protection awareness, human beings have gradually become aware of that the plastic products, waste are harmful to the human living environment. Therefore, research and application of biodegradable materials that do not rely on petroleum resources have become hot topics. Researchers have accelerated the development and promotion of plant fiber because they are good flexibility, relatively rough surface and biodegradable. Objective: The development of plant fiber composites is reviewed, including composition ratio, interfacial modification, processing technology, and the effects of these technologies on the properties of plant fiber composites. Methods: The paper reviews various patents and research developments about plant fiber composite materials. It also analyzes the advantages and disadvantages of various patents and technologies from the aspects of biodegradable ability, mechanical properties, dispersing performance, processing properties, cost, and so on. Results: The component proportion, interface modification, and processing technology of plant fiber composite materials are prospected to improve the quality and application of the plant fiber composite materials in the future development. Conclusion: The considerable attention has been paid on the technology of biodegradable plant fiber composite. The recent patents and technologies have shown us a wider application in biodegradable plant fiber composite. The problems how to improve the mechanical properties of plant fibers, the dispersion properties of plant fibers and resins, and the processing properties of composite materials, will need more and more methods and equipment to solve or simplify.

scholarly journals Structural Design and Mechanical Performance Analysis of Carbon Fiber Closed Fixtures for UHV Transmission Lines

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Yujiao Zhang ◽  
Cheng Yan ◽  
Xiongfeng Huang ◽  
Yanran Chen
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Carbon Fiber ◽  
Transmission Lines ◽  
Fiber Composite ◽  
Strength Analysis ◽  
Laminate Structure ◽  
Carbon Fiber Composite ◽  
Fiber Composite Materials ◽  
Uhv Transmission Lines

The closed clamp is a standard tool for the insulator replacement in ultrahigh voltage (UHV) transmission lines, which is mainly made of titanium alloy material and weighs more than 27 kg that greatly reduces the working efficiency for operators. Due to the lightweight demand, carbon fiber composite materials are applied to design a new type of clamp, in which mechanical properties of new fixtures need to be fulfilled while considering poor impact resistance and low interlaminar shear strength of carbon fiber composite materials. To excavate a high-strength ply structure, finite element progressive damage strength analysis is employed to evaluate the mechanical properties of three different ply angles of the carbon fiber closed fixture, in which Tsai–Wu strength theory is thought as the strength judgment basis for carbon fiber composite materials. After comparison with the displacement-load curves, the three different ply angles fail to meet the strength requirements. So, a carbon fiber laminate structure with an outer cladding for carbon fiber closed fixtures is raised and verified. The analysis results show that the laminate structure meets the strength requirements. Destructive test of the new closed clamp is conducted to verify the correctness of the proposed method, and the weight is reduced by 36.46%.

scholarly journals Mechanical Properties of 3D Woven Basalt Fiber Composite Materials: Experiment and FEM Simulation

2016 ◽  
Vol 72 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Lihua LV ◽  
Xuefei ZHANG ◽  
Guibin LIU ◽  
Yongfang QIAN ◽  
Fang YE ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fiber Composite ◽  
Fem Simulation ◽  
Basalt Fiber ◽  
Fiber Composite Materials

Metal injection molding of W-Ni-Fe microcutters

2011 ◽  
Vol 31 (4) ◽  
Author(s):  
Ming-Shyan Huang ◽  
Chin-Feng Chung
Keyword(s):  
Mechanical Properties ◽  
Injection Molding ◽  
Taguchi Method ◽  
Dimensional Stability ◽  
Liquid Phase Sintering ◽  
Metal Injection Molding ◽  
Powder Injection ◽  
Heating Rates ◽  
Optimal Injection ◽  
Micrometer Scale

Abstract This investigation applies metal injection molding (MIM) to fabricate precise microcutters from W-Ni-Fe alloy powder. The hard and brittle W-Ni-Fe alloy is difficult to machine, and MIM must be applied to produce near net-shaped products. MIM involves the injection molding of feedstock by blending metal powder and binders, debinding, and sintering. Liquid-phase sintering is commonly adopted to improve the density and mechanical properties of the sintered parts, but it is inferior in terms of dimensional stability. This study elucidates the dimensional stability of sintered parts made from W-Ni-Fe alloy feedstocks that contain 83 and 93 wt% W. The powder injection molding of microcutters that demand micrometer-scale precision is considered as an example. The Taguchi method is utilized to optimize injection molding and sintering parameters, effectively optimizing the dimensional stability and mechanical properties. Experimental results show that (1) feedstock with 93 wt% W exhibited little and consistent shrinkage (25%–26%); (2) the optimal injection molding parameters determined by the Taguchi method yield an eccentricity of over 18%, and (3) in the sintering process, low heating rate significantly improves dimensional stability. The average hardness of microcutters, sintered at various heating rates, ranges from Vickers hardness 446 to 452.

scholarly journals Influence of Injection Molding Parameters on the Mechanical Properties of Injected PC/ABS Parts

2020 ◽  
Author(s):  
Fatma Hentati ◽  
Neila Masmoudi
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Injection Molding ◽  
Taguchi Method ◽  
Process Parameters ◽  
Injection Pressure ◽  
Mold Temperature ◽  
Elasticity Module ◽  
Optimal Injection ◽  
Material Temperature

This study optimized the influence of process parameters on the mechanical properties during injection molding (IM) of PC/ABS blend. The Taguchi method of design of experiments (DOE) was employed to optimize the process parameters and to increase the tensile strength and the elasticity module. Taguchi’s L9 (34) orthogonal array design was employed for the experimental plan. Process parameters of the injection molding such as material temperature, injection pressure, holding time, and mold temperature were studied with three levels. The Signal to noise (S/N) ratio for mechanical properties of PC/ABS blend using the Taguchi method was calculated. Taguchi’s results proposed two sets of optimal injection parameters conditions to achieve the best mechanical characteristics (σ, E). The (S/N) ratio results proved that the injection pressure was the more prominent than the other IM process parameters for the tensile strength, and the material temperature was the more prominent for the elasticity module.

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