Springback in Metal Cutting with High Cutting Speeds

Comparison of Cutting Ceramics with Hard Metal Cutting Tools

Cutting ceramic tools are used especially at high cutting speeds in the machining process. The highly brittle type of structure and the tendency for cleavage (crack formation) are the infavorable properties of these materials, which keep their hardness at high temperatures. The hard metals are produced by sintering of the carbides such as whisker WC, TiC and TaC with the presence of Co as a bin...

High Speed Thin Metal Cutting using Fiber Laser Technology

There are several methods available for precision cutting of thin metals less than 0.06-inch thick used for these applications, which include materials such as stainless steel, titanium, nickel, and aluminum. The major options, lasers, electric discharge machining (EDM), water-jet, and chemical machining each have a role to play. However, precision fiber laser cutting technology is now emerging...

Modelling nonlinear regenerative effects in metal cutting

This paper deals with the nonlinear models of regenerative chatter on machine tools. The limitations and actual problems of the existing theory are summarized. These cause difficulties in industrial applications, like in the design of optimum technological parameters, adaptive control and/or vibration-suppression strategies. An industrial machine-tool vibration case is analysed experimentally a...

Cutting Aluminium Coils with High Length VariabilitiesChristoph

A case study of a cutting stock problem in an aluminium mill is presented. Orders have release dates, due dates, a total length and may be delivered in any number of coils within rather large length intervals. A variety of diierent cutting machines is available, hierarchical cuts may be necessary to produce small widths. The mill is capable of producing custom{made coils within certain bounds b...

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