Results 11 to 20 of about 1,787,073 (298)

Characterization of the Machine Behavior During Hollow Embossing Rolling of Metallic Bipolar Half Plates

open access: yesJournal of Machine Engineering, 2023
The hollow embossing rolling of thin-walled high precision components like metallic bipolar half plates is characterized by narrow process windows. Here, the knowledge of interaction between forming machine, roll and process is crucial for the process ...
Martin Wagner   +5 more
doaj   +1 more source

Estimation of External Force-Torque Vector Based on Double Encoders of Industrial Robots Using a Hybrid Gaussian Process Regression and Joint Stiffness Model

open access: yesJournal of Machine Engineering, 2023
Industrial robots are increasingly used in industry for contact-based manufacturing processes such as milling and forming. In order to meet part tolerances, it is mandatory to compensate tool deflections caused by the external force-torque vector ...
Eckart Uhlmann   +2 more
doaj   +1 more source

Potential of Tool Clamping Surfaces in Forming Machines for Cognitive Production

open access: yesJournal of Machine Engineering, 2022
High reproducibility of forming processes along with high quality expectations of the resulting formed parts demand cognitive production systems. The prerequisite is process transparency, which can be improved by increased knowledge of interdependencies ...
Mohaned Alaluss   +5 more
doaj   +1 more source

Research on a new high-quality and high-efficiency SLM forming method based on interlayer strategy [PDF]

open access: yesMATEC Web of Conferences, 2022
To ensure the forming quality of SLM and to improve the forming efficiency of SLM, this paper investigates the forming effect of Ti6Al4V specimens formed by SLM based on an interlayer strategy.
Wang Peng, Chen Dongju, Li Gang
doaj   +1 more source

Economic operation of China's superhard industry in the first half of 2022

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
Based on the Purchasing Managers' Index, the relevant data of the superhard material industry, the import and the export data of superhard commodities of China Customs, and the import data of United States and Japan Customs, 6 tables and 8 charts are ...
Lijuan LI   +6 more
doaj   +1 more source

Radial Error Motion Measurement and Its Uncertainty Estimation of Ultra Precision Axes of Rotation with Nanometer Level Precision

open access: yesMicromachines, 2022
The radial error is the key performance indicator of ultra-precision axis. In order to measure and evaluate the radial error of ultra-precision axis with nanometer accuracy, a measurement system with an accuracy of nanometer based on capacitive ...
Xingbao Liu   +5 more
doaj   +1 more source

Reliability Prediction for Computer Numerical Control Machine Servo Systems Based on an IPSO-Based RBF Neural Network

open access: yesShock and Vibration, 2022
The increasing use of computer numerical control (CNC) machines requires better prediction of the reliability of their servo control systems. A novel reliability prediction model based on radial basis function (RBF) neural network optimized by improved ...
Zheng Jiang   +4 more
doaj   +1 more source

Design of ultraprecision machine tools with application to manufacturing of miniature and micro components [PDF]

open access: yes, 2005
Currently the underlying necessities for predictability, producibility and productivity remain big issues in ultraprecision machining of miniature/microproducts.
Chen   +20 more
core   +1 more source

Hardware-in-the-loop simulator for emulation and active control of chatter

open access: yesHardwareX, 2022
Machine tool cutting performance is limited by the onset of regenerative chatter vibrations. Chatter damages the machine tool system and must be avoided. Efficacy of models guiding circumvention of chatter in actual industrial contexts remains restricted
Govind N. Sahu, Mohit Law
doaj   +1 more source

Static and Dynamic Characterization and Control of a High-Performance Electro-Hydraulic Actuator

open access: yesActuators, 2020
This paper characterizes the static, dynamic, and controlled behavior of a high-performance electro-hydraulic actuator to assess its suitability for use in evaluating machine tool behavior.
Govind N. Sahu   +3 more
doaj   +1 more source

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