Kapman Ab

Håkan Hellbergh

Robert C Hayden, Sr

Per Forsberg

During the manufacture of a bandsaw blade, a rotary hone forms, in a clearance side of each tooth, a narrow flat land. A leading edge of the land defines a sharp cutting edge. The land has a width no longer than ten percent of the pitch distance of the teeth.

Bandsaw blade for metal and a method for manufacturing a bandsaw blade with teeth

In a method and a system for determining the feeding speed when bandsaw cutting a workpiece, the tooth pitch TP of the bandsaw blade is determined in a first unit depending on the shape and dimensions of the workpiece. In a second unit feeding depth per tooth is determined depending on properties of the workpiece material and the width of the bandsaw blade. The bandsaw blade velocity BS is determined in a third unit from the width W of the workpiece and the hardness of the workpiece material, whereafter the cutting time T is determined in a first calculating unit from the height H of the workpiece, the feeding depth per tooth, the tooth pitch TP and the blade velocity BS. In a second calculating unit the feeding speed MH for the bandsaw blade is then determined by the equation MH=H/T. A computer program, when executed on a computer, performs this determination of the feeding speed when cutting a workpiece with a bandsaw from supplied input data.

Determination of band saw feeding speed

A bandsaw blade includes a blade beam carrying a plurality of cutting teeth separated by gullets. A clearance angle of the teeth is smaller than 35&#xb0;, and the back of a leading tooth has a convex transition to a gullet. The radius of the gullet is larger than &#xbd; of the depth of the gullet.

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Lidköping, Sweden

Håkan Hellbergh