185 Result(s)
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Article
Thermal behaviors in the metal high-efficiency grinding process under simulated vacuum conditions: state of the art and future perspectives
In situ resource utilization is a necessary means to achieve sustainable development of human habitation on the Moon. Grinding processing enables the processing and application of abundant mineral resources on...
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Article
Multi-objective optimization method of injection molding process parameters based on hierarchical sampling and comprehensive entropy weights
The key of the multi-objective optimization of injection molding processes lies in achieving a balance between the accuracy of the surrogate model and the multiple objectives while taking the diversity and int...
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Research of on-line monitoring technology and control strategy for laser-directed energy deposition: a review
As an advanced metal additive manufacturing technology, laser-directed energy deposition (DED-LB) has attracted a lot of attention in recent years, and is increasingly used in aerospace, automotive, marine, an...
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Article
Prediction of contact characteristics of abrasive belt compliant grinding for aircraft blades
Due to the characteristics of thin-walled curved surface, wall thickness variations, and cantilevered machining fixtures, the mechanical state of the different contact positions of aircraft engine blades varie...
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Article
Real-time and selective control of shell deformation based on dynamic and subregional pressure response of flexible dies under magnetic field
Pressure-carrying properties of traditional flexible dies can hardly be controlled during the forming process of shell components. In this work, a forming method based on the subregional and dynamic pressure r...
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Article
Improved depth residual network based tool wear prediction for cavity milling process
The parts with integrated design technology are widely used in aerospace field because of their advantages such as high strength and high reliability compared with riveted structures, which often present multi...
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Article
Deformation prediction and experimental investigation on alternating additive-subtractive hybrid manufacturing of 316L stainless steel thin-walled parts
In recent years, additive-subtractive hybrid manufacturing (ASHM) technology has become a research hotspot. To realize high-precision manufacturing of complex parts and avoid machining interference, alternatin...
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Article
A review of digital twin intelligent assembly technology and application for complex mechanical products
Digital twin (DT) technology has become an effective means of industrial digital transformation due to its ability to realize virtual-real map**, data fusion, etc. In recent years, the application of DT tech...
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Article
Advance in the research of electric pulse-assisted cutting
Electric pulse-assisted cutting has the advantages of reducing cutting force, improving machined surface quality, and delaying tool wear. It provides a desirable machining method for difficult-to-cut materials...
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Article
Effect of shell mold thickness and insulating wool pattern on internal porosity in investment casting of vortex flow meter
Investment casting (IC) with different insulating wool pattern and shell mold thickness is investigated for a geometrically complex vortex flow meter in this study. The primary coating consists of zircon (ZrSi...
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Article
Regional control of sheet metal formability via establishing differentiated pressure field using heterogeneous elastomers in flexible die forming process
Isostatic pressure-carrying properties of conventional flexible dies commonly fail to adapt to the forming of shell with sharp geometry change since pressure required by local region of sheet metal is unequal....
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Article
Mechanism on the increased sheet metal formability in flexible-die forming process using elastic composites with magnetic-field-dependence as the pressure-carrying medium
Magnetic smart materials were employed as pressure-carrying medium in sheet metal flexible die forming process to achieve the real-time control of sheet formability in recent years. Yet, few studies involved t...
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Article
Adaptive milling for contours on deformed surface based on on-machine measurement and optimized parallel projection
Machining contours on a large thin-walled part is a difficult task due to inevitable deformation of the actual part. The deformation of the contour can significantly influence the rigidity of the thin-walled p...
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Article
Advance in experimental research on cutting temperature of titanium alloys
Titanium alloys are widely used in aerospace, military equipment, and biological precision instruments due to the advantages of light weight, high strength, and excellent heat resistance. However, the high tem...
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Article
Adaptive sampling method for thin-walled parts based on on-machine measurement
Machining deformation compensation technology based on on-machine measurement has been widely used in the field of thin-walled part machining. However, few research has been conducted on sampling methods for t...
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Article
Zinc-based alloy rapid tooling for sheet metal forming reinforced by SLM steel inlays
Among the existing rapid and economical sheet metal–forming technologies, stam** with a press using soft tools, especially low-melting-point alloy dies, is one of the few methods that can meet the precision ...
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Article
Milling performance evaluation and cooling/lubrication mechanism of Al-50wt% Si alloy based on various environmentally sustainable manufacturing strategies
Silicon aluminum alloy with Si weight percentage in 50% (Al-50wt% Si) is a typical difficult-to-machine composite. In order to improve its machinability, it is necessary to optimize the friction state at the t...
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Optimized shape calibration process using flexible dies for annular and rectangular corners with small radius of thin-walled shell components
Since the structure of thin-walled shell component is sensitive to the thinning of shell thickness, it is essential to prevent material in critical deformation region, such as sharp corners, from exceeding the...
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The study of the improvement and mechanisms on ASS surface topography in pre-stress grinding considering SCC
The surface topography has an important influence on the SCC behavior of stainless steel. Pre-stress grinding has the potential to improve the SCC resistance of the surface. Therefore, theoretical and experime...
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Advancements in accuracy decline mechanisms and accuracy retention approaches of CNC machine tools: a review
Computer numerical control (CNC) machine tools, as advanced manufacturing equipment, have been widely used in modern manufacturing. The machining accuracy acting as a main index of performance has long been mo...
