Showing papers in "CIRP Annals in 1998"

TL;DR: Rapid prototyping generally refers to techniques that produce shaped parts by gradual creation or addition of solid material, therein differing fundamentally from forming and material removal manufacturing techniques as mentioned in this paper. But it is not suitable for all applications.

TL;DR: In this article, the authors present a critical assessment of the state-of-the-art of the wide and complex field of modelling and simulation of metal cutting operations based on information obtained from the members of the working group, from consultation in industry, study of relevant literature and discussions at meetings of the Working Group whit the aim to stimulate and pilot future developments.

TL;DR: In this article, a uniform wear method for 3D micro-EDM was proposed, which maintains the original electrode shape and converts the three dimensional electrode wear to a linear one.

TL;DR: In this article, the authors review the status quo in precision engineering and conclude that today's precision engineers put repeatability at the top of their list, and that creativity is more important in keeping the cost down by finding other than locally optimised solutions.

TL;DR: In this article, the authors analyze the performance of manufacturing systems in terms of reliability and productivity, product quality, capacity scalability, and cost for different system configurations assuming known machine level reliability and process capability.

TL;DR: In this paper, a manufacturing system that has to produce a mix of products in large numbers in highly competitive industry is designed to illustrate the methodology of axiomatic design theory, and this design may be an ideal and practical design for many manufacturing firms competing in consumer-oriented industries with worldwide over-capacity of manufacturing facilities.

TL;DR: Using different diamond tools with rake angles of 0 degree and −25 degree at different cutting speeds, taper cutting experiments were carried out with increasing depth of cut on silicon.

TL;DR: In this paper, the design and manufacturing capabilities of a company are represented in a Product Family Architecture, and Adaptive Conjoint Analysis is then applied to help customers assert their needs, define variations from base products, visualize their options and assess alternatives.

TL;DR: In this paper, the sequence of events occurring in the formation of the unique type of chip involved is correctly identified, and experimental evidence to this end is presented and discussed in fundamental terms.

TL;DR: In this article, the authors report on the development of tools for the assessment of surface integrity, and the experimental examination of surface alteration, and present examples of newly developed methods with the potential for assessing surface integrity.

TL;DR: In this paper, the surface formation of both methods is analyzed using analogy tests which simulate the engagement of single grains into the surface, and the ultrasonic superposition leads to altered mechanisms of surface formation as well as wear behavior of grains.

TL;DR: In this article, a software system to simulate measurements of workpieces with typical deviations is described and a proposal is made for structuring the area "operator influence" with special focus on measuring strategy with the components sampling strategy (number and distribution of sampled points), evaluation criteria, and filters.

TL;DR: In this article, an alternative high precision 3D-CMM with measuring uncertainty under 0.1 μm in a measuring volume of 1 dm 3 was proposed. But this measurement was based on the Abbe and Bryan principle.

TL;DR: In this article, the advantages and characteristics of linear drives in comparison with the conventional electromechanical drives are discussed and suitable applications are discussed for some special applications such as high speed machining.

TL;DR: In this article, the authors show the interdependence between process and machine innovations and investigate the machine tool developments relevant to grinding processes on a component and a system level, and their relevance to new demands on or to new design features of machines.

TL;DR: In this article, tool deflections of high length-to-diameter ratio endmills are measured with capacitance probes during high-speed milling and compared with the predictions of regenerative chatter theory.

TL;DR: In this article, the authors present a comprehensive concept for process modeling which provides a software tool for analyzing and designing high performance grinding processes, using the method of kinematic simulation.

TL;DR: In this paper, the temperature on the rake face of a single crystal diamond tool in precision turning is investigated experimentally and theoretically, and it is found that the temperature increases with the increase of cutting speed for the range of cutting speeds investigated.

TL;DR: In this paper, the analytical expressions of the local dexterity loci of parallel machine tools described by the singular values of the Jacobian matrix are formulated and the parametric relationship to obtain isotropy configurations is derived.

TL;DR: A method by means of which "precalculated structures" can be used to obtain the complete model of the machine at any position of its axis in a very straightforward way and results obtained correlate very closely with the ones obtained by the classical FEM.

TL;DR: In this paper, an approximate analytical method that overcomes many of the limitations of analytical tools while preserving good accuracy and low computational effort is presented. But it does not deal with deterministic processing times, finite buffer capacity and multiple failure modes of the machines.

TL;DR: In this article, the possibility of finishing milling of titanium alloy TiAl6V4 compressor gas turbine blades with polycrystalline cubic diamond PCD cutter that can be used successfully for milling "slim" - low stiffness - blades was investigated.

TL;DR: In this article, the authors focus on minimizing the material to be removed by predicting minimum machining allowance and improving the degree of localized dissolution in an industrial ECM system using pulse current with passivating electrolyte to mitigate sludge generation and improve accuracy.

TL;DR: In this article, the authors presented results obtained with two robust control schemes, one based on H_synthesis and the other on sliding mode control, and showed that load changes up to 300% can be dealt with and have only a negligible influence on the tracking error.

TL;DR: In this paper, the authors applied a transparent tool technique on a plane strip drawing of an aluminium sheet to provide the strip with surface pockets for entrapment of lubricant, and quantified the compression and eventual escape of trapped lubricant by MPHDL and MPHSL.

TL;DR: An overview of the current state of sheet metal forming simulation and related technologies employed by automakers and steel sheet suppliers is presented in this paper, where the authors visited industries in Europe, Japan, and the United States, to discuss the above-mentioned issues with engineers and researchers.

TL;DR: An open and reconfigurable modular tool kit is presented for the design of CNC systems for machine tools and machining process monitoring, based on a fully integrated, open, real-time, preemptive DSP operating system and a Windows NT application.

TL;DR: In this article, the thermal behavior of the main air spindle system of an ultraprecision machine tool is analyzed experimentally, and a simple method to estimate and compensate the thermal deformation is proposed by utilizing the measured transfer functions and the convolution integral.

TL;DR: In this paper, the effect of the tool length on achievable stable metal removal rate in high speed milling was investigated. But the tool size was not a factor in determining the most stable speed in the stability lobe diagram.

TL;DR: In this paper, the development of a rapid prototyping technique which can produce metal parts by electrodeposition using an electrolyte jet is described, which can be used to produce metal micro-part.