Review of factors that affect shrinkage of molded part in injection molding

D Annicchiarico, JR Alcock - Materials and Manufacturing …, 2014 - Taylor & Francis
Purpose: This paper reviews the factors affecting shrinkage of molded parts in injection
molding. Methods: A selective screening of the papers published in the last 10 years was …

Life and damage mode modeling applied to plastic gears

A Bravo, D Koffi, L Toubal, F Erchiqui - Engineering Failure Analysis, 2015 - Elsevier
There is a need to correctly dimension gears for an application with an understanding of
how the gear will deteriorate until final failure. However, this task has been difficult because …

A practical numerical approach to characterizing non-linear shrinkage and optimizing dimensional deviation of injection-molded small module plastic gears

X He, W Wu - Polymers, 2021 - mdpi.com
This paper was aimed at finding out the solution to the problem of insufficient dimensional
accuracy caused by non-linear shrinkage deformation during injection molding of small …

Gear fatigue life and thermomechanical behavior of novel green and bio-composite materials VS high-performance thermoplastics

A Bravo, L Toubal, D Koffi, F Erchiqui - Polymer Testing, 2018 - Elsevier
In many applications, metal gears have been replaced by plastic gears because of their
functionality and cost advantages. Despite their many benefits, the intensive use of plastics …

Detecting shrinkage voids in plastic gears using magnetic levitation

D Tang, P Zhao, Y Shen, H Zhou, J Xie, J Fu - Polymer Testing, 2020 - Elsevier
Shrinkage voids have a large influence on the quality of plastic gears, and it is still a problem
to detect the voids inside gears accurately and conveniently. This paper presents a novel …

Effect of teeth modifications and gear-paired materials on vibration and acoustic characteristics of polymer gears

A Kumar, A Parey, PK Kankar - Journal of the Brazilian Society of …, 2023 - Springer
Polymer gears (PGs) are increasingly replacing metal gears due to their benefits, such as
reduced noise and vibration and no need for lubrication. However, they can suffer from heat …

Application of RSM to Optimize Moulding Conditions for Minimizing Shrinkage in Thermoplastic Processing

SM Nasir, KA Ismail, Z Shayfull - Key Engineering Materials, 2016 - Trans Tech Publ
This study focuses on the analysis of plastic injection moulding process simulation using
Autodesk Moldflow Insight (AMI) software in order to minimize shrinkage by optimizing the …

2D and 3D numerical investigation on contact stress behaviour on different combinations of gear pair

AP Sugunesh, AJ Mertens - Materials Today: Proceedings, 2023 - Elsevier
Polyamide (PA6) polymer gear tremendously expanded its usage in power transmission
applications. PA6 gear were engaged with different combinations of gear pairs (STEEL …

Optimized use of cooling holes to decrease the amount of thermal damage on a plastic gear tooth

D Koffi, A Bravo, L Toubal… - Advances in Mechanical …, 2016 - journals.sagepub.com
The full potential of plastic gear usage is limited by not only poor mechanical properties but
also equally poor temperature limits and poor heat conduction properties. Cooling holes …

A comprehensive study on Hertzian contact stress behaviour of engineering thermoplastic gears using 3D finite element analysis

AP Sugunesh… - Proceedings of the …, 2024 - journals.sagepub.com
Two-dimensional Finite Element Analysis is frequently utilized to determine the behaviour of
gear contact stress due to its computational time and higher efficiency. Based on the gear …