Simulation study of an AGV system in an FMS environment
AbstractA simulation program written in ECSL to simulate an AGV system serving an FMS is presented. It incorporates a special algorithm to enable ‘intelligent’ routing of the AGVs with minimum control...
View ArticleOn the path layout and operation of an AGV system serving an FMS
AbstractA major step in the design of an AGV system involves the choice of its layout. Three different AGV layouts serving the same FMS are compared in this paper: a bidirectional line, a bidirectional...
View ArticleAutomatic Feature Extraction in Wire-Frame Models of 2 1/2-D Prismatic Parts
AbstractAutomatic feature extraction to eliminate the need for user intervention in ICAPP, a computer-aided process planning system developed at UMIST, is discussed. Two and a half dimension (21/2-D)...
View ArticleAn IGES post-processor for interfacing CAD and CAPP of 2 1/2D prismatic parts
AbstractAn IGES post-processor is presented, written in FORTRAN-77, to extract from an IGES file all information that an automatic process planning program needs, derive new information when necessary...
View ArticleKnowledge-based automatic allocation of cad drawing annotation to wireframe...
AbstractA knowledge-based Prolog program is presented that interprets the annotation information of a CAD drawing in terms of geometry primitives derived from the wireframe model used to create the...
View ArticleKnowledge-based selection and sequencing of hole-making operations for...
AbstractThis paper describes the rule structure used to select the appropriate sequence of operations to produce various types of holes in 2 1/2D prismatic components manufactured on machining centres....
View ArticleIntelligence in Computer-Aided Process Planning for Machining
AbstractProcess planning is the systematic specification and sequencing of processes by which a product is to be manufactured economically within a given manufacturing system. A process plan usually...
View ArticleOptimisation of Multiple Tool CNC Rough Machining of a Hemisphere as a...
This work presents the development of a method to achieve optimal roughing of a hemisphere in terms of least machining time and maximum material removal from the original material block. This is...
View ArticleSimulation-based selection of optimum pressure die-casting process parameters...
AbstractPressure die-casting condition selection mainly relies on the experience and expertise of individuals working in production industries. Systematic knowledge accumulation regarding the...
View ArticleSheet metal cutting and piercing operations planning and tools configuration...
AbstractThis paper describes the development of an expert system for both process planning and die design of sheet metal cutting and piercing operations. Knowledge for the system is acquired from...
View ArticleThe uniformity of remaining volume on rough-machined sculptured surface parts
AbstractIn rough machining of parts with sculptured surfaces, two main objectives are usually considered: machining time and overall removed material at the end of the roughing phase. The outcome of...
View ArticleRough milling optimisation for parts with sculptured surfaces using genetic...
AbstractIn rough milling of sculptured surface parts, decisions on process parameters concern feedrate, spindle speed, cutting speed, width of cut, raster pattern angle and number of machining slices...
View ArticleIntelligent Optimisation of 3-Axis Sculptured Surface Machining on Existing...
AbstractThis chapter discusses how the current practice for sculptured surface machining may be improved by embedding intelligent optimisation in the process planning steps for both roughing and...
View ArticleOptimisation of press-brake bending operations in 3D space
AbstractSheet metal bending processes are applied in a multitude of mechanical parts. The process involves optimising the sequence of designated bends taking into account the total processing and...
View ArticleFlexible Integration of Shape and Functional Modelling of Machine Tool...
AbstractIn this work a streamlined design process of a machining centre spindle assembly is advocated in a flexible, yet standardised manner. This enables automatic construction of a structured 3D...
View ArticleDirect porous structure generation of tissue engineering scaffolds for...
AbstractThree-dimensional modeling of porous objects consisting of freeform surfaces and possessing complex internal structure induces significant difficulties for CAD software even on state-of-the-art...
View ArticleRough-cut fast numerical investigation of temperature fields in selective...
AbstractThis paper investigates selective laser sintering/melting (SLS/SLM) processes by a thermal model solved with a finite difference scheme. The density equation is semi-empirical based on the...
View ArticleDevelopment of robotic welding stations for pressure vessels: interactive...
AbstractThis paper examines the issues pertaining to the design and development of robotic welding stations for large intricate products, by example of a fabric dying machine, combining large sheet...
View ArticlePreliminary Manufacturing Cell Design in Digital Factory
AbstractA design methodology is presented leading from product family specifications and estimated demand to basic 3D models of the corresponding manufacturing cell. Key steps involve mapping product...
View ArticleQuality Control of Die Castings by Machine Vision: A Case Study Exploiting...
AbstractThe aim of this work is to demonstrate that part dimensional inspection and defect detection in pressure-die castings is perfectly possible by exploiting image capturing hardware of reasonable...
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