Basic technological investigation of a new high-performance process for the production of internal threads and microstructure-based characterization of their performance
新型高性能内螺纹生产工艺的基础技术研究及其性能的基于微观结构的表征
基本信息
- 批准号:455887485
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:
- 资助国家:德国
- 起止时间:
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Conventional threading processes, such as tapping or forming, take up a large proportion of machining time of a component. Due to the defined thread pitch, the spindle rotation must be synchronized with the feed axis. In addition, the retraction movement takes place at the same feed rate in the reverse direction of rotation. The resulting loss of time due to the necessary acceleration and deceleration processes results in high main times.Within the scope of this research project, a process-safe concept for the innovative thread forming process "axial thread forming" for the aluminum cast alloy AlSi10Mg is to be developed in order to generate highly productive detachable joints. The innovative high-performance process offers enormous time saving potentials in contrast to conventional thread forming methods, since the thread is not formed continuously, but is completely produced by half a revolution of the tool.The basic aim of this research project is to acquire a basic knowledge of axial thread forming. The novel kinematics as well as the tool design, however, require the investigation of correlations between the machining itself and the result. The analysis of the mechanical tool loads as well as the forming processes during axial thread forming are just as important as the investigation of the thread quality. The transferability of the results to other material systems will be demonstrated using the brass alloy CuZn40.In order to characterize the internal threads, efficient test sequences for the investigation of the mechanical properties are to be further developed, which guarantee detailed knowledge of the quasi-static and cyclic material behavior based on application-optimized physical sensor technology with an appropriate number of specimens. The aim of the investigations is to obtain the highest possible information about the thread quality and the failure mechanisms with a relatively small number of specimens. In particular, the influence of the broaching channels generated during axial thread forming and the associated stress increase under load as well as the reduced overlap on the mechanical strength and fatigue life are investigated. Selected process-relevant parameters are varied during machining and evaluated using mechanical characterization methods. The feedback of the results into the manufacturing process enables resource-saving and efficient machining. In addition, the results are compared with threads produced conventionally by thread forming in order to classify the test results.The process-related geometric and microstructural properties of the internal threads are correlated with the mechanical properties, which results in a structure-based analysis of the damage mechanisms to generate a knowledgebase for the design of optimum process conditions based on a basic process-structure-property-understanding.
传统的螺纹加工工艺,如攻丝或成形,占据了部件加工时间的很大一部分。由于定义的螺距,主轴旋转必须与进给轴同步。此外,回缩运动以相同的进给速率在相反的旋转方向上发生。由于必要的加速和减速过程而导致的时间损失导致了高的主要时间。在本研究项目的范围内,将开发用于铝铸造合金AlSi 10 Mg的创新螺纹成形工艺“轴向螺纹成形”的工艺安全概念,以产生高生产率的可拆卸接头。与传统的螺纹成形方法相比,这种创新的高性能工艺具有极大的省时潜力,因为螺纹不是连续成形的,而是在刀具旋转半圈后完全产生的。本研究项目的基本目的是获得轴向螺纹成形的基本知识。然而,新的运动学以及工具设计,需要调查的加工本身和结果之间的相关性。在轴向螺纹成形过程中,机械工具载荷和成形过程的分析与螺纹质量的研究同样重要。将使用黄铜合金CuZn 40证明结果可转移到其他材料系统。为了表征内螺纹,将进一步开发用于机械性能研究的有效测试序列,这将确保基于应用优化的物理传感器技术和适当数量的样本详细了解准静态和循环材料行为。调查的目的是用相对较少的样本获得有关螺纹质量和失效机制的尽可能多的信息。特别是,在轴向螺纹形成过程中产生的拉削通道的影响和相关的应力增加的负载下,以及减少重叠的机械强度和疲劳寿命进行了研究。所选工艺相关参数在加工过程中变化,并使用机械表征方法进行评估。将结果反馈到制造过程中可以实现资源节约和高效加工。此外,结果进行了比较,与传统的螺纹形成,以分类的测试结果。与工艺相关的几何和微观结构性能的内螺纹的机械性能,这导致在基于结构的分析的损坏机制,以产生一个知识库的基础上的最佳工艺条件的设计的基础上的基本工艺-结构-性能-理解。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr.-Ing. Dirk Biermann其他文献
Professor Dr.-Ing. Dirk Biermann的其他文献
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{{ truncateString('Professor Dr.-Ing. Dirk Biermann', 18)}}的其他基金
Fundamental investigations on the effect of structured functional surfaces of milling tools regarding process dynamics
铣削刀具结构化功能表面对工艺动力学影响的基础研究
- 批准号:
426468684 - 财政年份:2020
- 资助金额:
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Fundamental investigations on the development of a single-phase CO2-lubricant solution to support deep-hole drilling processes for difficult to cut materials by using a cryogenic CO2 snow-lubricant-jet
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452408713 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Research Grants
Simulation-based design of high performance internal grinding processes
基于仿真的高性能内圆磨削工艺设计
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403857741 - 财政年份:2019
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Research Grants (Transfer Project)
Fundamental analysis of surface finishing using flexible foams coated with diamonds
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423137098 - 财政年份:2019
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Research Grants
Process parameters correlated characterization of the corrosion fatigue behavior of post-treated ZnAl-coated arc-sprayed systems
后处理 ZnAl 涂层电弧喷涂系统腐蚀疲劳行为的工艺参数相关表征
- 批准号:
426365081 - 财政年份:2019
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Research Grants
Lightweight and vibration reduced hybrid FRP-metal drill tubes with structure-integrated sensor technology for BTA deep hole drilling processes
轻量化、减振混合 FRP-金属钻管,采用结构集成传感器技术,适用于 BTA 深孔钻削工艺
- 批准号:
426328330 - 财政年份:2019
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Research Grants (Transfer Project)
Fundamental analysis of the machining process of a composite material made of concrete andCFRP with diamond grinding tools
金刚石磨具加工混凝土与CFRP复合材料的工艺基础分析
- 批准号:
391502479 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Research Grants
Fundamental Investigations on the frictional contact in the working zone in machining processes
加工过程中工作区摩擦接触的基础研究
- 批准号:
404632185 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Research Grants
Geometrically defined surface structuring for the form-locked bonding of thermal sprayed coatings
用于热喷涂涂层的形状锁定粘合的几何定义的表面结构
- 批准号:
380444554 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants
Process and tool development of single lip drills due to an optimisation of the circumferential shape and surface topography
通过优化圆周形状和表面形貌而开发单唇钻头的工艺和工具
- 批准号:
385966032 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grants (Transfer Project)
相似国自然基金
SCIENCE CHINA Technological Sciences
- 批准号:51224001
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
SCIENCE CHINA Technological Sciences
- 批准号:51024803
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
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