Effects of Composition, Processing, and Structure on Properties of Engineering Plastics[1]

2003 ◽  
pp. 28-48
Keyword(s):  
Engineering Plastics

ELECTRAFIL G-50/SS/5

Alloy Digest ◽  
1991 ◽  
Vol 40 (1) ◽  
Keyword(s):  
Electrical Conductivity ◽  
Fracture Toughness ◽  
Stainless Steel ◽  
Physical Properties ◽  
Tensile Properties ◽  
Steel Fibers ◽  
Engineering Plastics ◽  
Shielding Material

Abstract ELECTRAFIL G-50/SS/5 provides good electrical conductivity at a low loading of stainless steel fibers. It is useful as a shielding material and for current carrying parts. This datasheet provides information on physical properties, and tensile properties as well as fracture toughness. Filing Code: Cp-13. Producer or source: AKZO Engineering Plastics.

Study of friction stir spot welding for thermotolerant engineering thermoplastic polyimide joints

2021 ◽  
pp. 095440542199561
Author(s):  
Jicheng Gao ◽  
Jiachen Dong ◽  
Sunyi Zhang ◽  
Liang Yu ◽  
Huiming Jin ◽  
...  
Keyword(s):  
Shear Strength ◽  
Spot Welding ◽  
Dwell Time ◽  
Rotation Speed ◽  
Mixing Time ◽  
Friction Stir Spot Welding ◽  
Scanning Calorimetry ◽  
Friction Stir ◽  
Base Materials ◽  
Engineering Plastics

In this research, thermoplastic polyimide (TPI) were welding via friction stir spot welding (FSSW) in order to evaluate the feasibility of the technology. The welding tool with a tri-flute pin was used for keeping the welding effectiveness. The effect of the rotation speed and dwell time on the microstructure and shear strength was studied. The results shows that the number of gap defects between the shoulder affect zone and the pin affect zone decreased with the increase of the rotation speed. The boundary of the shoulder affect zone and the pin affect zone was no clear when increasing the dwell time from 10 s to 20 s. Long dwell time could increase the mixing time and reduce the materials viscosity, which made the structure was denser. The maximal shear strength was obtained 85.5% of the base materials. The differential scanning calorimetry (DSC) results indicated that the melting behaviour of different regions was no obvious difference. It indicated that FSSW had a feasible and potential technology to join the high temperature resistant engineering plastics.

scholarly journals Poly(aryl imino sulfone)s as new high-performance engineering plastics

2011 ◽  
Vol 68 (1) ◽  
pp. 95-111 ◽  
Author(s):  
Guanjun Chang ◽  
Xuan Luo ◽  
Yi Xu ◽  
Hongju Hu ◽  
Lidong Wei ◽  
...  
Keyword(s):  
High Performance ◽  
Performance Engineering ◽  
Engineering Plastics

Accuracy estimation in drilling small holes on engineering plastics by a mathematical approach

2017 ◽  
Vol 232 (21) ◽  
pp. 3807-3813
Author(s):  
Alper Uysal ◽  
Mihrigül Altan
Keyword(s):  
Cutting Speed ◽  
Least Square ◽  
Apparent Difference ◽  
Mathematical Approach ◽  
Radial Error ◽  
Engineering Plastics ◽  
Cast Polyamide ◽  
Twist Drills ◽  
Drill Tool ◽  
Small Holes

Engineering plastics have wide applications in different fields of industry due to their light weight and easy shaping. In manufacturing multi-component products, assembly is an inevitable stage and drilling is one of the necessary processes before joining of the components of these products. In this study, two of the most common types of engineering plastics, polyacetal (POM) and cast polyamide (castamide), were drilled with twist drills of 0.5 mm and 1 mm diameters, under different cutting speeds and feeds. In determining the accuracy of the drilled small holes, a mathematical approach was used in which least square circle method was applied and radial error of the each drilled hole was obtained. Thus, the hole accuracy could be determined without measuring equipment such as coordinate measurement machine. It has been seen that POM gave better hole accuracy than cast polyamide due its thermal and tribological properties. The effects of feed and cutting speed on the radial error were also investigated. POM did not show apparent difference in radial error according to the cutting parameters while cast polyamide showed lower radial error in higher feeds with 0.5 mm of drill tool and lower radial error with 1 mm of drill tool. Additionally, the radial error could be reduced with decrease of spindle speed at higher feed.

Research of machining forces and technological features of cast PA6, POM C and UHMW-PE HD 1000

2010 ◽  
Vol 1 (1) ◽  
pp. 136-143
Author(s):  
Robert Keresztes ◽  
Gabor Kalacska
Keyword(s):  
Injection Molding ◽  
Cutting Force ◽  
Mechanical Engineering ◽  
Cutting Process ◽  
Engineering Practice ◽  
Serial Production ◽  
Machining Forces ◽  
Engineering Plastics ◽  
Machine Elements ◽  
Cutting Processes

Nowadays parts made of up-to-date engineering plastics are used more and morein mechanical engineering practice. These machine-elements are produced most frequentlyby injection molding or by one cutting process. The injection molding technology are usedgenerally for great number of pieces, in case of serial production while cutting processes arepreferred to piece (unit) or smaller number production.We used lathe and measured the main- and feeding-directional cutting force at differentengineering polymers (cast PA6, POM C and UHMW PE HD 1000). The analysis made canbe well used in practice.

The effect of the different cutting tools on the micro-geometrical surface of engineering plastics

2010 ◽  
Vol 1 (1) ◽  
pp. 102-106
Author(s):  
G. Farkas ◽  
Gabor Kalacska
Keyword(s):  
Cutting Tools ◽  
Cutting Speed ◽  
Polymer Surfaces ◽  
Depth Of Cut ◽  
Engineering Plastics

We would like to present in this article the results of the microgeometrical study of theengineering polymer surfaces and the applied cutting tools. We compare the effects of differenttechnological parameters (cutting speed, cutting feed, depth of cut) having on the microgeometricalcharacteristics (Ra, Rz) and we summarise the results and conclusions from the practical engineeringlife.

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