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Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 66-76 doi: 10.1007/s11465-017-0417-2

Abstract: As an advanced manufacturing technology, the glass lens molding process has been recognized as a low-costkey technologies for glass lens molding, including glass and mold-die material forming, mold-die machining, and lens molding.These key technical factors, which affect the quality of the glass lens molding process, are systematicallylens molding in the future.

Keywords： aspheric glass lens     mold-die manufacturing     lens molding     molding process simulation    

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Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 46-65 doi: 10.1007/s11465-017-0425-2

Abstract: This paper presents an overview of optical microstructure fabrication through glass molding and highlightsthe applications of optical microstructures in mold fabrication and glass molding.Moreover, the latest advancements in glass molding technologies are detailed, including new mold materialsand their fabrication methods, viscoelastic constitutive modeling of glass, and microstructure moldingprocess, as well as ultrasonic vibration-assisted molding technology.

Keywords： optical microstructure     microgroove     microlens     glass molding process     single-point diamond cutting    

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Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 3-17 doi: 10.1007/s11465-017-0408-3

Abstract: time consuming to use machining processes, such as grinding, polishing and lapping, to produce optical glassPrecision glass molding (PGM) has thus been developed to realize an efficient manufacture of such opticalFor example, a PGM process must be carried out within the super-cooled region of optical glass aboveThis makes a PGM process sensitive to its molding temperature.to process optimization.

Keywords： precision glass molding     optical lens     constitutive modeling     optimization     manufacturing chain     Industry    

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Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 96-106 doi: 10.1007/s11465-018-0498-6

Abstract:

A three-stage molding process involving microcellular injection molding with core retraction and an

Keywords： thermoplastic polyurethane     microcellular injection molding     cavity expansion     compressive strength     hysteresis    

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Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 85-95 doi: 10.1007/s11465-018-0491-0

Abstract:

Injection molding is one of the most widely used material processing methods in producing plasticThe determination of process parameters is important in obtaining qualified products and maintainingThis article reviews the recent studies and developments of the intelligent methods applied in the processparameter determination of injection molding.A framework of process parameter determination is proposed after comprehensive discussions.

Keywords： injection molding     intelligent methods     process parameters     optimization    

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Density variation during the injection molding process directly reflects the state of plastic melt andcontains valuable information for process monitoring and optimization.Experiments with different process conditions are conducted, including different melt temperature, injectionmeasurement, non-destructive, high accuracy, low cost, and is of great application value for the injection molding

Keywords： ultrasonic measurement     melt density     in-situ measurement     injection molding    

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Trends of process parameters impact on forming quality of part during the gas-assisted injection molding

Qiu Shuijin,Jiang Shaofei,Chai Guozhong,Lu Congda

Strategic Study of CAE 2009, Volume 11, Issue 4,   Pages 84-90

Abstract:

This paper investigates process optimization for the specific rib withsection s-3 during the gas-assisted injection molding firstly, which is to get relationship betweenprocess parameters and quality evaluations,based on the Taguchi experimental design.Then, in the light of the above process conditions, a comparative study of four different cross-sectionribs are done, to investigate trend of the impact of the single process parameter on forming quality

Keywords： gas-assisted injection molding     rib     Taguchi experiment design    

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The electrostatic-alloy bonding technique used in MEMS

WANG Wei, CHEN Wei-ping

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 238-241 doi: 10.1007/s11465-006-0011-5

Abstract: Electrostatic-alloy bonding of silicon wafer with glass deposited by Au to form Si/Au-glass water, andbonding of Si/Au-glass with silicon wafer were researched during fabrication of pressure sensors.The silicon wafer and glass wafer with an Au film resistor were bonded by electrostatic bonding, andThis process was used in fabricating a pressure sensor with a sandwich structure.

Keywords： Si/Au-glass     strength     MEMS packaging     process     sandwich structure    

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An investigation into the properties of ternary and binary cement pastes containing glass powder

Marcelo Frota BAZHUNI, Mahsa KAMALI, Ali GHAHREMANINEZHAD

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 741-750 doi: 10.1007/s11709-018-0511-5

Abstract: The properties of binary and ternary cement pastes containing glass powder (GP) were examined.

Keywords： cement paste     glass powder     pozzolanic reaction     supplementary cementitious material    

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Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 376-382 doi: 10.1007/s11709-010-0086-2

Abstract: Pre-tensioned high strength trusses using alloy steel bar are widely used as glass wall supporting systemsThe breakage of glass panes in this type of system occurs occasionally, likely to be due to error indesign and analysis in addition to other factors like glass impurity and stress concentration aroundIt is not uncommon to see many similar glass wall systems fail in the wind load test chambers under a

Keywords： tension system     glass wall     nonlinear analysis     pre-tensioning     second-order analysis    

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Progress of three-dimensional macroporous bioactive glass for bone regeneration

Lijun JI, Yunfeng SI, Ailing LI, Wenjun WANG, Dong QIU, Aiping ZHU

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 470-483 doi: 10.1007/s11705-012-1217-1

Abstract: Bioactive glasses (BGs) are ideal materials for macroporous scaffolds due to their excellent osteoconductive, osteoinductive, biocompatible and biodegradable properties, and their high bone bonding rates. Macroporous scaffolds made from BGs are in high demand for bone regeneration because they can stimulate vascularized bone ingrowth and they enhance bonding between scaffolds and surrounding tissues. Engineering BG/biopolymers (BP) composites or hybrids may be a good way to prepare macroporous scaffolds with excellent properties. This paper summarizes the progress in the past few years in preparing three-dimensional macroporous BG and BG/BP scaffolds for bone regeneration. Since the brittleness of BGs is a major problem in developing macroporous scaffolds and this limits their use in load bearing applications, the mechanical properties of macroporous scaffolds are particularly emphasized in this review.

Keywords： bioactive glass     biopolymer     bone regeneration     macroporous scaffolds     tissue engineering    

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Influence of damages on static behavior of single-layer cable net supported glass curtain wall: full-scale

Gang SHI, Yongjiu SHI, Yuanqing WANG, Yongzhi ZUO, Xiaohao SHI, Zaoyang GUO,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 383-395 doi: 10.1007/s11709-010-0074-6

Abstract: The single-layer cable net supported glass curtain wall has been applied in many building structuresstudy the influence of such damages on the static behavior of the single-layer cable net supported glassThe stiffness contribution of glass panels to the single-layer cable net supported glass curtain wallThe stiffness contribution of glass panels increases with the load increase.Under the same loading condition, the stiffness contribution of glass panels to the damaged structure

Keywords： single-layer plane cable net supported glass curtain wall     damage     cable prestress loss     cable anchorageend failure     stiffness contribution of glass panels    

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Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 419-428 doi: 10.1007/s11709-013-0224-8

Abstract: the concrete industry has adopted a number of methods to achieve this goal by replacement of waste glassTherefore, replacement of waste glass with fine aggregate in SCC should deeply be investigated comparedThe aim of the present study is to investigate the effect of glass replacement with fine aggregate onshown to decrease when the content of waste glass is increased.be produced SCC with waste glass as fine aggregate in a standard manner.

Keywords： Self Compacting Concrete (SCC)     recycle glass     fine aggregate     fresh and hardened properties    

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Pressure in Gas-assisted Injection Molding

Ou Changjin

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 27-32

Abstract:

In this study,  an effective control method and strategy based on fuzzy neural network has been developed for gas injection pressure accurate control in gas-assisted injection. A fuzzy neural network controller with five layers and its control algorithm are established.  The learning ability of neural network is used to optimize the rules of the fuzzy logic so as to improve the adaptability of system.  The simulation of the system capability and three segmental injected pressure control are carried out under the environment of MATLAB and the results show that this theoretic model is feasible, and the control system has good characteristics and control action.

Keywords： gas-assisted injection molding     fuzzy neural network     gas-injection pressure control    

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Assessment of glass fiber-reinforced polyester pipe powder in soil improvement

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 742-753 doi: 10.1007/s11709-021-0732-x

Abstract: This study investigates the use of glass fiber-reinforced polyester (GRP) pipe powder (PP) for improving

Keywords： shallow foundation     sandy soil     bearing capacity     soil improvement     pipe powder    

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Title Author Date Type Operation

Review of small aspheric glass lens molding technologies

Shaohui YIN,Hongpeng JIA,Guanhua ZHANG,Fengjun CHEN,Kejun ZHU

Journal Article

Recent advancements in optical microstructure fabrication through glass molding process

Tianfeng ZHOU,Xiaohua LIU,Zhiqiang LIANG,Yang LIU,Jiaqing XIE,Xibin WANG

Journal Article

Precision glass molding: Toward an optimal fabrication of optical lenses

Liangchi ZHANG,Weidong LIU

Journal Article

Microcellular injection molding process for producing lightweight thermoplastic polyurethane with customizable

Thomas ELLINGHAM, Hrishikesh KHARBAS, Mihai MANITIU, Guenter SCHOLZ, Lih-Sheng TURNG

Journal Article

Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Journal Article

density measurement for plastic injection molding via ultrasonic technology

Journal Article

Trends of process parameters impact on forming quality of part during the gas-assisted injection molding

Qiu Shuijin,Jiang Shaofei,Chai Guozhong,Lu Congda

Journal Article

The electrostatic-alloy bonding technique used in MEMS

WANG Wei, CHEN Wei-ping

Journal Article

An investigation into the properties of ternary and binary cement pastes containing glass powder

Marcelo Frota BAZHUNI, Mahsa KAMALI, Ali GHAHREMANINEZHAD

Journal Article

Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Journal Article

Progress of three-dimensional macroporous bioactive glass for bone regeneration

Lijun JI, Yunfeng SI, Ailing LI, Wenjun WANG, Dong QIU, Aiping ZHU

Journal Article

Influence of damages on static behavior of single-layer cable net supported glass curtain wall: full-scale

Gang SHI, Yongjiu SHI, Yuanqing WANG, Yongzhi ZUO, Xiaohao SHI, Zaoyang GUO,

Journal Article

Recycled glass replacement as fine aggregate in self-compacting concrete

Yasser SHARIFI, Mahmoud HOUSHIAR, Behnam AGHEBATI

Journal Article

Pressure in Gas-assisted Injection Molding

Ou Changjin

Journal Article

Assessment of glass fiber-reinforced polyester pipe powder in soil improvement

Journal Article