When quality tools are worth their money -- Part Two

Source: "VDMA"

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High-quality circular saw blades - more than just a circular set of teeth!
Author: Hermann Engert, Key Account Manager (AKE)

When does a saw blade become a precision tool of the highest quality? The basic body, solder and cutting material have a significant influence on the properties of the circular saw blade and therefore on the quality of the cut and the tool life, which are the primary criteria on which a circular saw blade is judged when cutting through a single board or a pack of boards.

In order to achieve the best possible results, the individual design of the saw blade should also be matched to the particular task in hand. Today, many areas of application are generally covered by catalog products offered by the many different saw blade manufacturers. However, in order to operate plants with greater focus on the process and with maximized productivity, it is essential that the circular saw blades required to do this are carefully matched to the production conditions.

* Thinner, faster, longer, better
* Improved quality of cut
* Longer tool life
* Raw material the cornerstone of quality
* Increasing productivity with the right tool service

Milling tools with a bore - recognized quality
Andreas Kisselbach, Leitz GmbH & Co. KG

Milling tools are single tools in which the cutting edges and the basic body are made and produced of the same material (so-called solid milling tools), or composite tools in which the cutting edges are permanently attached to the basic body by means of e.g. brazing solder. For composite tools, PCD - carbide or HSS-Steel and Stellite (the latter named appear in a limited amount) are used to be the cutting material. Solid milling tools are generally made of high-alloyed steel tool. Superficially, milling cutters appear to be simple tools – but once we get down to the details of them it seems to be clear that there is much more potentiality. Milling tools which are designed for the same machining task are not identical. The purpose of this article is to demonstrate and light up the important criteria in order to allow users to recognize the difference in quality and to estimate them.

* Stable basic tool body
* Chip space: wide or narrow
* Precision of the bore
* Ripple-effect
* Well soldered?
* Scharpness of the cutting edge
* Art of resharpening