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Optimization of Process Parameters for Injection Moulding of Nylon6/SiC and Nylon6/B_(4)C Polymer Matrix Composites

Fluid Dynamics & Materials Processing 2022年第2期18卷 223-232页

作者： G.Boopathy K.Gurusami M.Chinnapandian K.R.Vijayakumar St.Peter’s Institute of Higher Education and Research Chennai600054India Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology Chennai600062India St.Peter’s College of Engineering and Technology Chennai600054India MGR Educational and Research Institute Chennai600095India

In this research study,the mechanical properties of several Polymer matrix composites are *** composites are multi-phase materials in which reinforcing materials are properly mixed with a polymer *** precisely,Nylon 6 reinforced with 5,15 and 25 wt.%of silicon carbide(SiC)and Nylon 6 reinforced with 5,15 and 25 wt.%of boron carbide(B_(4)C),prepared by means of an injection moulding process at three different injection pressures are *** attention is paid to the tensile and impact strength of these *** taguchi technique is used to optimize the process parameters such as reinforcement material,its percentage and the injection *** is observed that the specimens 5%SiC with 80 MPa injection pressure display a better tensile strength and similarly the specimen 5%B_(4)C with 90 MPa injection pressure have a superior impact strength.

关键词： PMCs Nylon 6 injection moulding taguchi technique ANOVA

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Optimization of Rolling Parameters for Enhancing Surface Integrity of Aluminum Alloy

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Journal of Harbin Institute of Technology(New Series) 2023年第6期30卷 70-82页

作者： Emad Ali Hussein Jabbar Gattmah Ayad Naseef Jaseem Suha K Shihab Production Engineering and Metallurgy University of TechnologyBaghdad 10066Iraq Department of Material Engineering College of EngineeringUniversity of DiyalaBaqubah 32001DiyalaIraq

In this current work,aluminum alloy grade 2024 is adopted as a plate material that is used in the rolling process with three different parameters including thickness reduction,forming temperature,and density of lubrication *** experimental procedure of the rolling process is performed using the design of the experiment based on the taguchi technique(L27),then surface roughness,surface hardness,and surface residual stresses are *** results showed that the lubrication density has a significant impact on the surface roughness which depends on the lubrication properties(mineral oil type,natural fat,and kinematic viscosity)while surface hardness and surface residual stresses were strongly affected by thickness *** the other side,the augment in forming temperature can decrease the quality of the final surface finish and the surface hardness but reduce the induced residual *** best surface finish is obtained based on the optimum condition of the rolling factors are(R%_(3),T_(1),andρ_(3))while the optimum condition of rolling parameters that generate higher hardness and compressive residual stresses are(R%_(3)T_(1)ρ_(1)).

关键词： Rolling operation taguchi technique Al2024 Surface roughness Surface hardness Surface residual stresses

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