在SiC陶的激光辅助加工不同处理状态下对声波发射信号的实验研究
Chen Cao1,2, Yugang Zhao3, Xiukun Hu1
1School of Mechanical Engineering, Taishan University, Taian 271000, China.
Micromachines
|January 28, 2026
概括
本研究引入了一种使用声辐射 (AE) 信号的新方法,以定量识别SiC陶的激光辅助加工 (LAM) 中的塑料加工状态. AE信号的低频带能量比率有效地标志着陶软化,使得精确的控制.
科学领域:
- 材料科学与工程 材料科学与工程
- 制造过程 制造过程 制造过程
- 声学 声学 在声学方面
背景情况:
- 像碳化 (SiC) 这样的陶的激光辅助加工 (LAM) 在控制加工状态方面提出了挑战.
- 区分脆性,塑料和热损伤状态对于最佳的加工结果至关重要.
- 声辐射 (AE) 信号提供了实时监测的潜力,但需要强大的分析方法.
研究的目的:
- 在不同处理状态下的SiC陶LAM中分析AE信号的光谱特征.
- 开发一种使用AE信号能量频谱识别塑料加工状态的定量方法.
- 提供数值表征和理论指导,用于检测陶LAM中的塑料加工.
主要方法:
- 单因子实验改变激光功率以确定处理状态范围 (脆性,塑性,热损伤).
- 波段数据包无声化和AE信号的频谱分析.
- 能源频谱分析侧重于低频带能量比率,用于陶软化特征.
主要成果:
- 定义的处理状态范围:基于激光功率的脆性 (0-185W),塑料 (185-225W) 和热损伤 (>225W).
- 在不同的处理状态内确定了AE信号的特征频率和振幅趋势.
- 建立了一种定量方法,将AE信号的低频带能量比率与陶软化程度联系起来.
结论:
- AE信号的低频带能量比率提供了LAM期间陶软化的间接,定量特征.
- 这种方法可以从定性评估过渡到塑料加工状态的定量检测.
- 这些发现为SiC陶激光辅助切割实时监控提供了宝贵的理论指导.
相关概念视频
Matrix-Assisted Laser Desorption Ionization (MALDI)
1.2K
Matrix-assisted laser desorption ionization (MALDI) is a powerful analytical technique used in mass spectrometry. It enables the identification and characterization of various biomolecules, including proteins, peptides, nucleic acids, and carbohydrates. MALDI is an ionization technique, widely employed in biological and medical research, as well as in fields like pharmacology and biochemistry.The analyte of interest, a biomolecule or a mixture of biomolecules, is mixed with a suitable matrix...
1.2K
Emission Spectra
76.2K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
76.2K
Imaging Studies II: Positron Emission Tomography and Scintigraphy
554
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
554
Machines
576
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
A free-body diagram of the...
576
Machines: Problem Solving II
663
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
663
Machines: Problem Solving I
711
A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
711


