优化切割参数以最大限度地减少薄壁几何结构的微研磨墙壁变形
Ahmet Hasçelik1, Kubilay Aslantas2, Bekir Yalçın2
1Iscehisar Vocational High School, Afyon Kocatepe University, 03200 Afyon, Turkey.
Micromachines
|March 27, 2025
概括
优化微研磨参数是减少薄壁结构墙壁变形的关键. 料速度显著影响变形,突出其对微组件精密制造的重要性.
科学领域:
- 制造业 工程 制造工程
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
背景情况:
- 薄壁微型结构对于微型设备至关重要,其性能与制造精度直接相关.
- 墙壁变形是微加工复杂几何形状的一个重大挑战,特别是高面比 (h/t>20).
- 切割参数极大地影响微研磨中的墙壁变形.
研究的目的:
- 为了研究料速率,轴速度和切割深度对切削力和墙壁变形的影响.
- 优化切割参数以最大限度地减少墙壁变形和控制微薄墙结构中的切割力.
- 确定影响触力 (Fx),料力 (Fy) 和薄壁变形的最有影响力的参数.
主要方法:
- 使用直径为1毫米的碳化工工具,微型研磨Al6061-T6合金薄壁 (50微米厚).
- 应用Taguchi L18直角设计进行参数优化.
- 使用光学造型仪测量切削力 (Fx,Fy) 和薄壁变形.
主要成果:
- 切割深度是影响触力 (Fx) 的最重要因素,为56.94%.
- 料速度是45.3%的料力 (Fy) 最有影响力的参数.
- 料速率成为影响薄壁变形的主要因素,占87.36%.
结论:
- 料速率是最小化微磨薄墙结构壁变形的最关键参数.
- 优化切割参数,特别是料速率,对于在微型制造中实现高精度至关重要.
- 这项研究为复杂的微观结构控制变形提供了宝贵的见解,解决了现有文献中的差距.
相关概念视频
01:23Unsymmetric Loading of Thin-Walled Members
91
Thin-walled members with non-symmetrical cross-sections are vital to engineering structures, offering material efficiency and structural integrity. However, unsymmetrical loading on these members leads to complex stress distributions, resulting in simultaneous bending and twisting can cause deformation or structural failure. The interaction between bending and twisting requires detailed analysis to ensure structural resilience.
The concept of the shear center is crucial in countering the...
The concept of the shear center is crucial in countering the...
91
01:15Thin-Walled Hollow Shafts
159
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
159