Results 11 to 20 of about 4,969 (222)
Corneal Biomechanical Findings in Contact Lens Induced Corneal Warpage
Journal of Ophthalmology, 2016 Purpose. To evaluate the difference in biomechanical properties between contact lens induced corneal warpage and normal and keratoconic eyes. Method. Prospective observational case control study, where 94 eyes of 47 warpage suspicious and 46 eyes of 23 ...
Fateme Alipour +6 more
doaj +2 more sources
, 1976 Because of a need to reduce warpage in investment castings, and because of reported success in the use of aqueous polyalkylene glycol solutions for reducing warpage in heat-treated sheet-metal parts, particularly for aluminum alloys, an experiment was designed to include these solutions along with polyethylene glycol solutions in a study of quenching ...
Patterson, E. P.
openaire +3 more sources
Effect of Overmolding Injection Parameters on Warpage of PMMA-PC Composite Board
Cailiao gongcheng, 2018 The influence of overmolding injection parameters such as packing pressure, racking time, melt temperature, mold temperature and the injection speed on the warpage of PMMA-PC composite boards was investigated. The result shows that the warpage of PMMA-PC
SUN Qi-wei +5 more
doaj +2 more sources
INTERPRETATION OF WARPAGE SIMULATION RESULTS IN ASMI [PDF]
Applied Computer Science, 2015 The article describes the problematic of interpretation of warpage simula-tion results in Autodesk Simulation Moldflow Insight. Warpage results are relatively easy to obtain from injection molding analysis, but the result in-terpretation demands higher ...
Ivan GAJDOŠ +3 more
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Residual stress analysis and warpage control of 0Cr17Ni7Al spring steel wire [PDF]
Journal of Hebei University of Science and TechnologyIn order to solve the problem of residual stresses in the drawing process of 0Cr17Ni7Al spring steel wire and the rebound phenomenon after the wire curling, the effects of drawing process parameters on residual stresses and wire warpage were analyzed ...
Lei HUANG +8 more
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Journal of Manufacturing and Materials ProcessingInjection molding is a fundamental process for transforming plastics into various industrial components. Among the critical aspects studied in this process, volumetric contraction and warpage of plastic parts are of particular importance.
Juan Luis Gámez +4 more
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Warpage of rubber pressed composites [PDF]
, 2002 The rubber pressing process is applied for the rapid production of thermoplastic composite products. However, rubber pressed products show geometrical distortions, such as warpage, due to process-induced residual stresses. It is believed that these stresses build up as a result of the large thermal gradients that are present during consolidation.
Wijskamp, Sebastiaan +3 more
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Molded Part Warpage Optimization Using Inverse Contouring Method. [PDF]
Polymers (Basel)Warpage is among the most prevalent defects affecting injection molded parts. In this study, we aimed to develop methods to minimize warpage through mold design.
Godec D, Panđa F, Tujmer M, Monkova K.
europepmc +2 more sources
Optimal Dummy Pattern Design Method for PWB Warpage Control Using the Human-Based Genetic Algorithm
Micromachines, 2020 In this work, a method that minimizes printed wiring board (PWB) warpage by dummy pattern design is proposed. This work suggests that dummy patterns are placed on a preset discretized location in the PWB to reduce the warpage.
Sun Kyoung Kim, Sang-Hyuk Lee
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Experimental study of panel level packaging warpage
, 2022 S.634-637This paper presents an analysis on panel warpage as the growth of the panel exceeds beyond current wafer sizes. This work is a part of iNemi working group "Wafer/Panel Level Package Flowability and Warpage Project".
Fu, H. +5 more
core +1 more source