Optimization of the morphological multi-layer system of micro components by means of a thermally highly flexible process strategy
通过热高度灵活的工艺策略优化微元件的形态多层系统
基本信息
- 批准号:318272028
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants (Transfer Project)
- 财政年份:2016
- 资助国家:德国
- 起止时间:2015-12-31 至 2019-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Inner componential properties substantially affect the components resulting properties within semi-crystalline thermoplastics. How inner-componential properties develop primarily depends on the cooling conditions of the component. These cooling conditions depend on the mold temperature due to the components minimal thickness, especially with regards to micro components. Due to a lack of knowledge on the causal relationships between selected tempering parameters, the establishment of inner properties and the resulting tribological properties, the development of tribologically optimal micro components has proven limited. In the research project "Processing induced morphological influences on the properties of thermoplastic micro gears" fundamental information regarding the influence of inner component properties on the resulting tribological properties were able to be obtained. Results showed that optimal tribological characteristics manifest in particular regions within the component with distinct, inner componential properties. By means of a conventional dynamic temperature strategy, which enables cooling at nearly constant cooling rates, higher cooling velocities along the components edges are achieved. Consequently, fewer distinct, inner componential properties and unfavorable tribological properties are emerged. While slower cooling rates could lead to better tribological properties, it would cause significantly longer cycle time. In order to reduce cycle times and to achieve optimal tribological properties, the mold systems cooling velocity needs to be adjustable flexibly. However, this has proven to be inadequate with current techniques. The aim of this transfer project is to study the aforementioned cooling conditions in micro injection molding, which ensure that every finite layer of a thermoplastic components cross section is exposed to the crystallization temperature area. Additionally, generating an idealized, theoretical injection molding temperature profile through process simulation is of fundamental importance. The ultimate aim is a targeted control of the mold temperature in order to optimize the inner-componential properties and, simultaneously, minimize the cycle time with a new, highly dynamic mold tempering strategy. Using the knowledge acquired to date, a demonstrator, here a micro gear, with homogenous, defined and optimal componential properties across the entire cross-section will be manufactured. With the help of obtained results, exploring new, fundamental questions becomes possible. Using the latest characterization methods for analyzing crystallization behavior with process-based cooling conditions allows establishing a process simulation model in which the micro-injection molding requirements can be ideally considered. Furthermore, the ability to manufacture micro-components with amorphous and highly temperature-resistant materials could also be considered.
内部组件性能显着影响半结晶热塑性塑料中组件的性能。内部部件性能的发展主要取决于部件的冷却条件。由于部件厚度最小,特别是微型部件,这些冷却条件取决于模具温度。由于缺乏对所选回火参数、内部性能的建立和由此产生的摩擦学性能之间因果关系的了解,摩擦学最佳微型部件的开发已被证明是有限的。在“加工引起的形态对热塑性微型齿轮性能的影响”研究项目中,可以获得有关内部组件性能对最终摩擦学性能影响的基本信息。结果表明,最佳摩擦学特性表现在具有独特内部部件特性的部件内的特定区域。通过传统的动态温度策略,可以以几乎恒定的冷却速率进行冷却,从而可以沿部件边缘实现更高的冷却速度。因此,出现的明显内部成分特性和不利的摩擦学特性较少。虽然较慢的冷却速率可能会带来更好的摩擦学性能,但它会导致循环时间显着延长。为了减少循环时间并实现最佳的摩擦性能,模具系统的冷却速度需要灵活调节。然而,这已被证明对于当前技术来说是不够的。该转移项目的目的是研究微注射成型中的上述冷却条件,确保热塑性部件横截面的每个有限层都暴露在结晶温度区域。此外,通过工艺模拟生成理想化的理论注塑温度曲线至关重要。最终目标是有针对性地控制模具温度,以优化内部组件性能,同时通过新的高动态模具回火策略最大限度地缩短周期时间。利用迄今为止获得的知识,将制造出一个演示器,这里是一个微型齿轮,在整个横截面上具有均匀、明确和最佳的部件特性。借助所获得的结果,探索新的基本问题成为可能。使用最新的表征方法来分析基于工艺的冷却条件下的结晶行为,可以建立一个工艺模拟模型,在该模型中可以理想地考虑微注塑成型的要求。此外,还可以考虑使用非晶态和耐高温材料制造微型元件的能力。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Influence of a locally variable mold temperature on injection molded thin-wall components
局部可变模具温度对注塑薄壁部件的影响
- DOI:10.1515/polyeng-2017-0100
- 发表时间:2018
- 期刊:
- 影响因子:2
- 作者:Fischer;Jungmeier;Peters;Drummer
- 通讯作者:Drummer
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Professor Dr.-Ing. Dietmar Drummer其他文献
Professor Dr.-Ing. Dietmar Drummer的其他文献
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{{ truncateString('Professor Dr.-Ing. Dietmar Drummer', 18)}}的其他基金
Joining by using pin-like structures in welding processes
在焊接过程中使用销钉结构进行连接
- 批准号:
432470536 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Grants
Thermoset-bonded injection-molded magnets with defined structure of magnetization
具有明确磁化结构的热固性粘合注塑磁体
- 批准号:
448366335 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Grants
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- 批准号:
432469470 - 财政年份:2020
- 资助金额:
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Research Grants
High precision micro components by the use of dynamically tempered injection molding
通过使用动态回火注塑成型实现高精度微型部件
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391037722 - 财政年份:2017
- 资助金额:
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Research Grants
Cross linked sheets for highly stressed thermoforming applications
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283899356 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants (Transfer Project)
Analysis of performance-related, process related structure and shape deviations of plastic gears for application related design
分析塑料齿轮的性能相关、工艺相关结构和形状偏差,以进行应用相关设计
- 批准号:
290477982 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Units
High-precision optics by application-optimized compression induced solidification (CIS)
通过应用优化的压缩诱导凝固 (CIS) 实现高精度光学器件
- 批准号:
290812922 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Research Grants (Transfer Project)
Defined local influence on properties by injection moulding of thermoplastic micro-parts with dynamic temperature process control, Knowledge Transfer Project
通过动态温度过程控制热塑性微型零件的注塑成型对性能的局部影响,知识转移项目
- 批准号:
258700519 - 财政年份:2014
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-- - 项目类别:
Research Grants (Transfer Project)
Injection Molding of Signal Generators for Hallsensor-Arrays
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- 批准号:
238855620 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Grants
Bonding mechanism during welding of radiation cross-linked thermoplastic polymers
辐射交联热塑性聚合物焊接过程中的粘合机制
- 批准号:
248297578 - 财政年份:2013
- 资助金额:
-- - 项目类别:
Research Grants
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