Cerca
An experimental study of process variables in turning operations of Ti–6Al–4V and Cr–Co spherical prostheses
(Springer Verlag, 2012)
Ti–6Al–4V and Cr–Co alloys are extensively used in manufacturing prostheses due to their biocompatibility, high strength-to-weight ratio and high resistance to corrosion and wear. However, machining operations involving ...
An investigation into alternative conceptions and knowledge retention of manufacturing concepts in undergraduate/graduate engineering students
(Elsevier, 2013)
Manufacturing organizations are constantly demanding competent young engineers with a solid knowledge on manufacturing topics. At Engineering Degrees, Manufacturing Processes is a compulsory subject where the students learn ...
Femtosecond laser micromachining with extended depth of focus by using diffractive lenses
(Elsevier, 2014-06-01)
We show that a simple diffraction focusing element can alleviate mechanical tolerances in ultrafast laser microprocessing. In particular, we experimentally demonstrate that, in comparison with a conventional refractive ...
Manufacturing variation models in multi-station machining systems
(Springer Verlag, 2013)
In product design and quality improvement fields, the development of reliable 3D machining variation models for multi-station machining processes is a key issue to estimate the resulting geometrical and dimensional quality ...
Estimation of Nonstationary Process Variance in Multistage Manufacturing Processes Using a Model-Based Observer
(IEEE, 2018-08)
In this paper, we propose a recursive algorithm to estimate the process variance in multistage manufacturing or assembly processes. We use a replicated model that includes the process variance to be estimated as a time-varying ...
Process-oriented tolerancing using the extended stream of variation model
(Elsevier, 2013-06)
Current works on process-oriented tolerancing for multi-station manufacturing processes (MMPs) have been mainly focused on allocating fixture tolerances to ensure part quality specifications at a minimum manufacturing cost. ...
Extension of the Stream-of-Variation Model for General-Purpose Workholding Devices: Vices and Three-Jaw Chucks
(Institute of Electrical and Electronics EngineersIEEE, 2021-03-23)
Nowadays, advanced manufacturing models, such as the stream-of-variation (SoV) model, have been successfully applied to derive the complex relationships between fixturing, manufacturing, and datum errors throughout a ...
Quality prediction and compensation in multi-station machining processes using sensor-based fixtures
(2013-04-25)
New fixture technologies, such as sensor-based fixtures, will significantly improve part quality through cutting-tool path compensations in multi-station machining processes (MMPs). Successful application of sensor-based ...
Parallel laser micromachining based on diffractive optical elements with dispersion compensated femtosecond pulses
(Optical Society of America, 2013)
We experimentally demonstrate multi-beam high spatial
resolution laser micromachining with femtosecond pulses. The effects of
chromatic aberrations as well as pulse stretching on the material processed
due to diffraction ...
A Tool Condition Monitoring System Based on Low-Cost Sensors and an IoT Platform for Rapid Deployment
(MDPI, 2023)
Tool condition monitoring (TCM) systems are key technologies for ensuring machining
efficiency. Despite the large number of TCM solutions, these systems have not been implemented
in industry, especially in small- and ...