Seco Tools Ab

Jonas Jordberg

Mikael Jansson

Stefan Hedberg

A cutting insert intended for chip removing machining includes a body forming at least one cutting edge, a securing structure such as a helical thread disposed at one side of the body, and a key grip such as a profiled recess disposed at an opposite side. The insert is formed of injection molded cemented carbide such that the body, the securing structure, and the key grip are all integral with one another. The insert is secured in a holder by rotating the insert using a key which engages the key grip, whereupon the securing structure engages a complementary securing structure on the holder to pull the insert body against the holder.

Cemented carbide cutting insert having integral structure for securing the insert in a holder

A cutting insert for milling comprises two major sides, two minor sides, and upper and lower sides. At least one pair of cutting edges is formed at the transition of the upper side with a major side and a minor side of the cutting insert. The upper side constitutes a chip surface, and the major and minor sides constitute clearance surfaces. Each pair of cutting edges comprises a major cutting edge extending along the major side, and a minor cutting edge extending along the minor side. The major and minor cutting edges intersect in the area of a cutting corner. The cutting corner is provided inside an imaginary extension line of a major part of the minor side. The major cutting edge slopes such that it forms an acute angle with the lower side. Each pair of cutting edges joins a first clearance surface protruding relative to a plane containing a major portion of the minor and major sides. Recesses are formed in the major sides.

Tool and cutting insert for milling

The present invention relates to a tool for chip removal including a holder and a cutting insert provided with a through-hole to abut against a base surface and support surfaces in a cutting insert pocket in the holder. A locking pin threaded into a boring in the holder is received by the insert hole. The pin includes a head, a waist, a conical portion, and a threaded portion, which pin portions have a common center axis in an unloaded condition. The locking pin is of a quick action type. The boring includes an eccentric conical recess provided to displace the cutting insert in a direction towards the support surfaces in cooperation with the pin during tightening of the pin in the threaded part of the boring. The pin is provided to be able to secure both negative and positive cutting inserts in the insert pocket, by the head and the waist at a final phase of the pin tightening provided to elastically bend in a direction from the support surfaces. A transition between the head and waist cooperates with a profiled hole in a first type of cutting insert while the head cooperates with a cylindrical insert hole in another type of cutting insert.

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Norberg, Sweden

Jonas Jordberg