一种多尺度工具定向生成方法,用于用公牛鼻工具自由形表面加工
Jieshi Dong1,2, Jinming He1,2, Song Liu1,2
1Department of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
Micromachines
|June 28, 2023
概括
本研究介绍了一种用于在五轴数控加工中生成最佳工具方向的多尺度方法. 该方法确保了复杂的自由形状部件所需的表面表面和加工条幅.
科学领域:
- 制造业 工程 制造工程
- 计算机辅助制造 (CAM) 是指计算机辅助制造.
- 表面计量学 表面计量学
背景情况:
- 自由形状表面在航空航天和汽车等行业至关重要,需要高精度加工.
- 五轴计算机数控 (CNC) 机械加工需要精确的工具定向,以提高效率和准确性.
- 现有的方法往往难以平衡宏观和微观尺度的表面质量要求.
研究的目的:
- 提出一种用于自由形状表面加工的新型多尺度工具定向生成方法.
- 为满足对加工条宽度 (宏观尺度) 和表面粗度 (微观尺度) 的同时控制的需求.
- 确保工具路径平稳,防止加工过程中的干扰.
主要方法:
- 分析工具方向和旋转轴之间的相关性.
- 开发可行的面积计算和工具方向调整技术.
- 实施宏观加工条幅和微观粗度计算方法.
- 将规模特定的调整方法集成到统一的多规模生成方法中.
主要成果:
- 拟议的多尺度方法成功生成了满足宏观和微观规模要求的工具定向.
- 在自由形表面上的实验验证表明,实现了目标加工条幅和粗度.
- 该方法确保了工具的顺定向,并避免了加工干扰.
结论:
- 开发的多尺度工具定向生成方法对于自由形表面的高精度加工是有效的.
- 这种方法在工业应用中为提高工件表面质量提供了显著的潜力.
- 该方法为在不同尺度上平衡竞争性加工要求提供了可靠的解决方案.
相关概念视频
Bending of Curved Members - Neutral Surface
205
In curved beams, unlike straight beams, the stress distribution across the cross-section is not uniform due to the beam's curvature. This non-uniformity arises because the neutral axis, where stress is zero, does not align with the centroid of the section. In a curved beam, the strain varies along the section as a function of the distance from the neutral axis.
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within...
Consider the curved member described in the previous lesson. According to Hooke's law, which relates stress to strain within...
205
Unsymmetric Bending - Angle of Neutral Axis
354
Unsymmetrical bending occurs when a structural member is subjected to bending moments in a plane that does not align with the member's principal axes. This scenario typically arises in beams and other structural components when loads are applied at non-ideal angles, introducing complexities in stress analysis.
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
When a bending moment is applied at an angle θ concerning the vertical axis of a symmetrical member, it can be resolved into components along the member's principal...
354
Rotation of Asymmetric Top
942
By definition, a spherically symmetric body has the same moment of inertia about any axis passing through its center of mass. This situation changes if there is no spherical symmetry. Since most rigid bodies are not spherically symmetric, these require special treatment.
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
The relationship between the angular momentum of any rigid body and its angular velocity, both of which are vectors, involves the moment of inertia. The moment of inertia is a scalar quantity only for spherically symmetric...
942
Design Example: Traverse Angle Computations
110
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
110
Wood Surfacing
120
Wood surfacing is a critical finishing process designed to smoothen the wood surface, enhance its dimensional accuracy, and make handling safer. This process compensates for potential shrinkage during the seasoning phase by marginally increasing the wood dimensions before surfacing. It also helps correct some distortions that may occur as the wood dries.
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
The equipment used in the surfacing process is a plane equipped with rotating blades. This tool efficiently smoothens the wood surface and can...
120


