... that use a dynamic viscosity model based on the variable magnetic flux density. A thermal model is proposed to predict heat generation and temperature rise on the workpiece surface with the help of energy partitioning, heat conduction equations, and WSS. It is observed that the temperature rises...

...Tony Shi; Jiajie Wu; Mason Ma; Elijah Charles; Tony Schmitz This study models the temperature evolution during additive friction stir deposition (AFSD) using machine learning. AFSD is a solid-state additive manufacturing technology that deposits metal using plastic flow without melting. However...

... able to absorb water from a humid environment. This absorption ability is intensified by increasing the conditioning temperature. The moisture diffusion process affects considerably the mechanical properties of the resulting composite, which causes many issues during the machining operations...

... vibration on the workpiece with variable downfeed. The effects of ultrasonic vibration and downfeed on the chip formation mechanism, temperature field, grinding force, and equivalent stress and strain were evaluated by analytical and simulation methods. The results show that the formation of the grinding...

...Lei Zhang; W. Brian Rowe The paper considers fluid convection in low-temperature grinding. Fluid cooling often predominates over all other forms of heat dispersion in the grinding zone particularly in low-temperature grinding. Experimental values of convection heat transfer coefficient (CHTC) up...

..., 33 kHz, and 41 kHz). For the first time, melt pool size, temperature distribution, and peak temperature within the melt pool, as well as the peak temperature fluctuation within a layer deposition, were studied. Porosity and thermal-dependent properties including grain size and microhardness were also...

... is modified by adding a CO sensitive term and incorporating the mechanical-thermal loadings. Furthermore, the temperature, temperature rate, strain rate, and Taylor factor are also combined in the model of phase transition. The kinetics parameters of the models are obtained by a regression analysis against...

...Sinan Kesriklioglu; Justin D. Morrow; Frank E. Pfefferkorn The objective of this work is to fabricate instrumented cutting tools with embedded thermocouples to accurately measure the tool–chip interface temperature in interrupted and continuous turning. Thin-film thermocouples were sputtered...

..., pelleting temperature, charring, and sugar yield. However, there are no studies on pellet cracks. This paper, for the first time, presents a study on pellet cracks in UV-A pelleting of wheat straw. It first describes experimental conditions and then presents experimental results about effects of pelleting...

... of four μ IM parameters, melt temperature, mould temperature, injection speed, and packing pressure on these three pressure-related process parameters was investigated. A design of experiment study was conducted by moulding a test part, a microfluidic component, in three different polymer materials, PP...

... the workpiece is short or the feed rate is low, transient heat transfer becomes more dominant during grinding. Results also show that cooling in the grinding contact zone has much more significant impact on the reduction of workpiece temperature than that in the leading edge or trailing edge. The model...

...Masahiko Sato; Naoki Tamura; Hisataka Tanaka This paper describes the cyclic temperature variation beneath the rake face of a cutting tool in end milling. A newly developed infrared radiation pyrometer equipped with two optical fibers is used to measure the temperature. A small hole is drilled...

.... In addition to a frequency domain stability analysis of the three characteristic instabilities of the process (geometric lobing, chatter and spinning), new models have been developed and implemented to analyze the other main restrictions, namely, process power, temperature and burning power, roughness...

.... A sacrificial support material is needed for the fabrication of complex ice parts. Identifying a suitable support material and understanding the interaction between the build and support materials is the motivation behind this study. A temperature prediction model and a concentration prediction model...

... relaxation thermal expansion optoelectronic devices lenses production engineering computing viscoelasticity lens glass forming structural relaxation thermal expansion temperature numerical modeling viscosity In recent years, hot compression molding has emerged as a promising...