Results 61 to 70 of about 263 (211)
Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures
Advanced Engineering Materials, EarlyView.We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann +2 more
wiley +1 more source
Prediction Model for Wheat Grain Losses in Header of Simulator by Using Dimensional Analysis Approach [PDF]
Journal of Agricultural Machinery, 2018 Introduction One of the problems which considered in recent years for grain harvesting is loss of wheat during production until consumption and tenders the offers for prevention of its especially in harvesting times by combine harvesting machine.
R Karmulla Chaab +3 more
doaj +1 more source
In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy
Advanced Engineering Materials, EarlyView.A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal +4 more
wiley +1 more source
Jixie chuandong, 2010 Tool path generation method is the most important and the most extensive and in-depth content for the free-form surface parts NC-machining. In the multi-axis NC-machining,tool path influences on the precision and efficiency of machining.
段振云, 王君, 赵文辉
doaj
Research on cylindrical indexing cam’s unilateral machining
Advances in Mechanical Engineering, 2015 The cylindrical cam ridge of the indexer is a spatial curved surface, which is difficult to design and machine. The cylindrical cam has some defects after machining because conventional machining methods have inaccuracies.
Junhua Chen +3 more
doaj +1 more source
Modeling of Convex Surface Topography in Milling Process
Metals, 2020 Cr12MoV die steel is a typical high-strength and high-hardness material. Because of the high hardness of Cr12MoV die steel, which is approximately 50–65 HRC after quenching, and the tool’s weak rigidity, cutting vibration, and tool deformation are ...
Xiaole Hao +5 more
doaj +1 more source
A Novel Cutter Path Planning Approach to High Speed Machining [PDF]
Computer-Aided Design and Applications, 2006 AbstractHigh speed machining is playing a more and more important role in modern machines shops, in particularly, in aerospace machining, mold and die machining. In high speed milling operations, a path that has the least number of sharp turns is preferred. Spiral curve is a special curve which can have no sharp turn, and the step-over between adjacent
openaire +1 more source
Nondestructive Testing of Welded Composite Metal Foams
Advanced Engineering Materials, EarlyView.X‐ray computed tomography (CT) is used to evaluate welded steel–steel composite metal foam (CMF) joints of two density classes. It reports variation in postweld spatial void distribution and correlates it to weld‐induced changes, mechanical performance, and failure within welded CMF panels.
Chinmaya Prerana Inguva +2 more
wiley +1 more source
Research of the Path Optimization for the NC Planing Process of the Spur Face-gear
Jixie chuandong, 2016 The principle of the NC planing process of the spur face-gear is briefly introduced,the equations of the tooth profile and the tooth cutter are derived,the mathematical relation between the tooth cutter angle and the allowance is established,and then,the
Qian Lulu, Yang Xiaoyu, Tang Jinyuan
doaj
Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source