Manufacturing and measurement of freeform optics

FZ Fang, XD Zhang, A Weckenmann, GX Zhang… - Cirp Annals, 2013 - Elsevier
Freeform optics is the next-generation of modern optics, bringing advantages of excellent
optical performance and system integration. It finds wide applications in various fields, such …

Research on product surface quality inspection technology based on 3D point cloud

L Huo, Y Liu, Y Yang, Z Zhuang… - Advances in Mechanical …, 2023 - journals.sagepub.com
In recent years, machine vision has played an important role in product surface quality
detection. The promotion and use of this technology have largely avoided the subjectivity …

Adaptive sampling method for inspection planning on CMM for free-form surfaces

M Yu, Y Zhang, Y Li, D Zhang - The International Journal of Advanced …, 2013 - Springer
Coordinate measurement machines (CMMs) have been widely used in inspecting
mechanical parts with higher accuracy. Both the distribution and the number of the sampled …

A modified ICP algorithm based on dynamic adjustment factor for registration of point cloud and CAD model

W Li, P Song - Pattern Recognition Letters, 2015 - Elsevier
This paper presents a modified ICP algorithm based on dynamic adjustment factor to speed
up registration of point cloud and CAD model with high accuracy. The algorithm comes from …

A survey of process monitoring using computer-aided inspection in laser-welded blanks of light metals based on the digital twins concept

A Aminzadeh, S Sattarpanah Karganroudi… - Quantum Beam …, 2022 - mdpi.com
The benefits of laser welding include higher production values, deeper penetration, higher
welding speeds, adaptability, and higher power density. These characteristics make laser …

Detection of workpiece shape deviations for tool path adaptation in robotic deburring systems

A Kuss, M Drust, A Verl - Procedia CIRP, 2016 - Elsevier
Robotic systems have the potential to automate deburring processes along edges of
arbitrarily shaped workpieces. The desired robot movement can be realized by proper …

A machining accuracy informed adaptive positioning method for finish machining of assembly interfaces of large-scale aircraft components

W Fan, L Zheng, W Ji, X Xu, Y Lu, L Wang - Robotics and Computer …, 2021 - Elsevier
An assembly interface of a large-scale aircraft component is a joint surface to connect
adjacent large components. To guarantee the final assembly accuracy of the large …

An automated in-situ alignment approach for finish machining assembly interfaces of large-scale components

P Lei, L Zheng - Robotics and Computer-Integrated Manufacturing, 2017 - Elsevier
Alignment is a crucial issue for finish machining the assembly interfaces of a large-scale
component before final assembly in the aviation industry, as it affects the distribution of …

GTINet: Global Topology-aware Interactions for Unsupervised Point Cloud Registration

Y Jiang, B Zhou, X Liu, Q Li… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Point cloud registration is a critical task in various 3D applications. Supervised approaches
are restricted by the difficulty and cost of acquiring ground-truth annotations. Thus …

A robust and accurate automated registration method for turbine blade precision metrology

W He, Z Li, Y Guo, X Cheng, K Zhong, Y Shi - The International Journal of …, 2018 - Springer
Turbine blades with complex features are a critical part of turbomachinery, and the
manufacture of geometric dimensions and tolerances is strictly controlled to ensure the …