481 Result(s)
within
Industrial and Production Engineering
Mechanical Engineering
**fu Fu
Article
Engineering
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Article
A precision design and NC manufacturing model for concave-arc ball-end cutters
Having first defined the helical angle as the angle between the cutting edge and the axis of rotation of the cutter, this paper then presents design models for producing the cutting edge and groove of a ball-e...
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Applying grey forecasting method for fitting and predicting the performance characteristics of an electro-conductive ceramic (Al2O3+30%TiC) during electrical discharge machining
This paper presents a residual modified grey dynamic model RGM(1,3) in order to fit and predict the performance characteristics of an electro-conductive ceramic (Al2O3+30%TiC) during electrical discharge machinin...
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Cutting area extraction from a Z-map model
A method for boundary extraction of cutting area is presented. With this method, the compound surfaces are approximated by the Z-map model to address the issues regarding cutting area generation. The run-lengt...
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Article
Development and performance of monolayer brazed CBN grinding tools
CBN grinding tools have been broadly utilized in machining difficult-to-cut materials in recent years. Grains of the conventional grinding tools, however, are held in the tool matrix just through the mechanica...
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Article
Modeling and synchronous control of a single-axis stage driven by dual mechanically-coupled parallel ball screws
This paper presents a synchronous control scheme and system modeling technique for a single-axis stage driven by dual parallel ball screws/servo motors. The slide tables of the two ball screws are bridged with...
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Tool path generation for machining compound surfaces with extended cut region method
Presented in the paper is a novel tool path generation method for 3-axis NC machining of compound surfaces. Tool path generation procedure consists of two core steps: firstly, the extended cut region (ECR) of ...
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Article
Analysis of shrinkage and warpage in an injection-molded part with a thin shell feature using the response surface methodology
This paper presents a systematic methodology to analyze the shrinkage and warpage in an injection-molded part with a thin shell feature during the injection molding process. The systematic experimental design ...
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A universal velocity profile generation approach for high-speed machining of small line segments with look-ahead
Usually a complex contour-machining program generated by CAD/CAM systems composes a lot of small line segments. The intelligence of look-ahead is key to meeting the demand of high speed and high accuracy in th...
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Die fatigue life design and assessment via CAE simulation
In die design process, the design and prediction of die fatigue life is a non-trivial issue. Many factors in die life cycle from design, fabrication to service all affect die life. The die life in cold forging...
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Article
Principles and apparatus of multi-point forming for sheet metal
As a flexible forming method for sheet metal part, multi-point forming (MPF) technology is discussed in the paper. It employs two reconfigurable element groups to approximate the continuous upper and lower sol...
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Design solution evaluation for metal forming product development
In the current metal forming product development paradigm, the simultaneous and optimal design of product, process and forming system is a non-trivial issue as there are many affecting factors which interact a...
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Product design reuse with parts libraries and an engineering semantic web for small- and medium-sized manufacturing enterprises
The design reuse of products is vital for mass customization. In small- and medium-sized manufacturing enterprises (SMMEs), employing design reuse is a challenging issue because of the limited level and scale ...
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An analytical investigation into the Nusselt number and entropy generation rate of film condensation on a horizontal plate
This study investigates the heat transfer characteristics and entropy generation rate of a condensate film formed on a horizontal plate with suction at the wall. Applying the minimum mechanical energy principl...
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Numerical simulation and experiments of magnetic flux leakage inspection in pipeline steel
The magnetic flux leakage (MFL) method is currently the most commonly used pipeline inspection technique. In this paper, numerical simulation and experimental investigation on defect inspection in pipeline ste...
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The effect of orifice lead cutting edge distance and fluid viscosity on jet performance in high-velocity waterjet cutting systems
This paper uses numerical methods to discuss the influence of different designs of orifice geometries on the coherence of waterjets for cutting accurately in high velocity waterjet systems. Firstly, the numeri...
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Efficient method of assembly sequence planning based on GAAA and optimizing by assembly path feedback for complex product
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Efficient method of assembly sequence planning based on GAAA and optimizing by assembly path feedback for complex product
In the process of complex product assembly, assembly resources (fixtures, tools, operations, and so on) must enter assembly environment with parts together to rapidly finish product assembly. Assembly planning...
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Research on the uncertainties from different form error evaluation methods by CMM sampling
As a part of the new measurement uncertainty system proposed in the new generation of Geometrical Product Specifications and Verification, the evaluation methods of uncertainties to form errors have been resea...
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Local scale-based 3D model retrieval for design reuse
3D model retrieval plays an important role in product design reuse. We present a local scale-based model retrieval methodology for 3D mechanical parts library. On the grounds that most of the mechanical parts ...
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Study on one-step simulation for the bending process of extruded profiles
Traditional one-step approaches are either based on the membrane element in which bending effects cannot be considered or based on the simplified shell element in which the initial blank is flat and the curvat...
