自润滑液膜辅助模内微装配成型精密控形技术与机理研究
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摘要
针对模内微装配成型过程中,预成型微型件的热流固耦合变形难以精确控制的技术难题,研究提出了高速自润滑功能液膜辅助模内微装配成型精密控形创新工艺。结果表明,高速自润滑功能液膜辅助模内微装配成型能使预成型微型件的黏弹性热流固耦合变形精密控制在几十微米的精度内,实现了聚合物微细机械系统的模内微装配成型高精度微装配加工;通过高速自润滑功能液膜辅助模内微装配成型与传统模内微装配成型对比分析研究,揭示了高速自润滑功能液膜辅助模内微装配成型创新工艺精密控形的机理。
Aiming at the difficulty in the precise control for thermal-fluid-structure coupling deformation of permolded micro-component in the in-mold micro assembly molding process, an innovative precise shape control technology was proposed for the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding.The results indicated that the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding could make the thermal-fluid-structure coupling deformation of permolded micro-component controlled within a precision of several tens of micron, thus leading to a high precision for the in-mold micro assembly molding of polymeric micro mechanical system, Through a comparative analysis between the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding and the traditional molding, the shape-control mechanism was exploited for the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding.
Aiming at the difficulty in the precise control for thermal-fluid-structure coupling deformation of permolded micro-component in the in-mold micro assembly molding process, an innovative precise shape control technology was proposed for the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding.The results indicated that the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding could make the thermal-fluid-structure coupling deformation of permolded micro-component controlled within a precision of several tens of micron, thus leading to a high precision for the in-mold micro assembly molding of polymeric micro mechanical system, Through a comparative analysis between the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding and the traditional molding, the shape-control mechanism was exploited for the high-speed self-lubricating functional liquid membrane-assisted in-mold micro assembly molding.
引文
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[12] 杨先鲁.聚合物微型机械模内组装成型过程数值模拟研究[D].南昌:南昌大学,2013.
[13] 周文彦,周国发.熔体粘弹性对聚合物多层共挤成形离模膨胀影响的数值分析[J].机械工程学报,2010,46(6) :111-119.ZHOU W Y,ZHOU G F.Numerical Investigation on the Influence of Melt Viscoelasticity on Die Swelling of Polymer Co-extrusion Process[J].Journal of Mechanical Engineering,2010,46(6) :111-119.
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[15] RAJAGOPALAN D,ARRMSTRONG R C,BROWN R A.Finite Element Methods for Calculation of Steady Viscoelastic Flow Using Constitutive Equations with a Newtonian Viscosity[J].Journal of Non-Newtonian Fluid Mechanics,1990,36:159-192.
[16] 周文彦,周国发.聚合物多层气辅共挤精密成型机制的数值分析[J].复合材料学报,2009,26(3):90-98.ZHOU W Y,ZHOU G F.Numerical Investigation on the Mechanism of Polymer Multilayer Gas Assisted Co-extrusion Precision Molding Process[J].Acta Materiae Compositae Sinica,2009,26(3):90-98.
[2] ABHAY V.A Capillary Force Micro-gripper for Micro Assembly Using Electro-Wetting-On-Dielectric (EWOD)[D].USA:University of Akron,2009.
[3] ANANTHANARAYANAN A,GUPTA S K,BRUCK H A.Characterization of a Reverse Molding Sequence at the Mesoscale for In-Mold Assembly of Revolute Joints[J].Polymer Engineering and Science,2010,50(9):1 843-1 852.
[4] WOJCIECH B.In-Mold Assembly of Multi-Functional Structures[D].USA:University of Maryland,2010.
[5] ATTIA U M,HAUATA M,WALTON I,et al.Creating Movable Interfaces by Micro-powder Injection Mounding[J].Journal of Materials Processing Technology,2014,214(2):295-303.
[6] MEISTER S,DRUMMER D.Micro Assembly Injection Moulding with Variothermal Mould Tempering[J].Micro-system Technologies,2017,23(4):1 017-1 025.
[7] 周国发,阳培民,罗智,等.基于黏弹性热流固耦合作用的模内微装配成型过程数值模拟[J].化工学报,2017,68(3):1 129-1 137.ZHOU G F,YANG P M,LUO Z,et al.Numerical Simulation on In Mold Micro Assembly Molding Process Based on Viscoelastic Thermal Fluid Structure Coupling[J].CIESC Journal,2017,68(3):1 129-1 137.
[8] 周国发,刘婷玉,万小龙.聚合物微型零件的热流固耦合变形特性[J].中国塑料,2017,31(2):72-76.ZHOU G F,LIU T Y,WAN X L.Thermal Fluid Structure Coupling Deformation Characteristics of Polymer Micro Component[J].China Plastics,2017,31(2):72-76.
[9] 万小龙.聚合物微型机械模内组装成型的实验研究[D].南昌:南昌大学,2016.
[10] ANANTHANARAYANAN A,GUPTA S K,BRUCK H A.Modeling and Characterization to Minimize Effects of Melt Flow Fronts on Premolded Component Deformation During In-mold Assembly of Mesoscale Revolute Joints[J].Journal of Manufacturing Science and Engineering,Transactions of the ASME,2010,132(4):575-590.
[11] ANANTHANARAYANAN A,GUPTA S K,BRUCK H A.Characterization and Control of Plastic Deformation in Mesoscale Premolded Components to Realize In-mold Assembled Mesoscale Revolute Joints[J].Polymer Engineering and Science,2009,49(2):293-304.
[12] 杨先鲁.聚合物微型机械模内组装成型过程数值模拟研究[D].南昌:南昌大学,2013.
[13] 周文彦,周国发.熔体粘弹性对聚合物多层共挤成形离模膨胀影响的数值分析[J].机械工程学报,2010,46(6) :111-119.ZHOU W Y,ZHOU G F.Numerical Investigation on the Influence of Melt Viscoelasticity on Die Swelling of Polymer Co-extrusion Process[J].Journal of Mechanical Engineering,2010,46(6) :111-119.
[14] 周国发,王梅媚,张宇.聚合物多相分层流动黏弹性包围机制的数值模拟研究[J].复合材料学报,2014,31(6):1 618-1 625.ZHOU G F,WANG M M,ZHANG Y.The Numerical Simulation on the Mechanism of Viscoelastic Encapsulation in Polymer Multiphase Stratified Flows[J].Acta Materiae Compositae Sinica,2014,31(6):1 618-1 625.
[15] RAJAGOPALAN D,ARRMSTRONG R C,BROWN R A.Finite Element Methods for Calculation of Steady Viscoelastic Flow Using Constitutive Equations with a Newtonian Viscosity[J].Journal of Non-Newtonian Fluid Mechanics,1990,36:159-192.
[16] 周文彦,周国发.聚合物多层气辅共挤精密成型机制的数值分析[J].复合材料学报,2009,26(3):90-98.ZHOU W Y,ZHOU G F.Numerical Investigation on the Mechanism of Polymer Multilayer Gas Assisted Co-extrusion Precision Molding Process[J].Acta Materiae Compositae Sinica,2009,26(3):90-98.
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