Abstract: A double-sided tangential cutting insert comprising a pair of cutting rake faces, a pair of major side surfaces and a pair of opposing minor side faces each having a twisted convex shape. Each of the cutting rake faces is defined between a pair of main cutting edges, a pair of full nose cutting edges, and a pair of opposing convex minor cutting edges. Each of the minor side faces is defined between one of the convex minor cutting edges at one of the rake faces and one of the convex minor cutting edges at the other one of the rake faces wherein, at each minor side face, a ridge line interconnects an apex of the convex minor edge at the one of the rake faces and an apex of the convex minor cutting edge at the other one of the rake faces. Other variants and embodiments are broadly contemplated herein.

Abstract: A double-sided tangential cutting insert comprising a pair of cutting rake faces, a pair of major side surfaces and a pair of opposing minor side faces each having a twisted convex shape. Each of the cutting rake faces is defined between a pair of main cutting edges, a pair of full nose cutting edges, and a pair of opposing convex minor cutting edges. Each of the minor side faces is defined between one of the convex minor cutting edges at one of the rake faces and one of the convex minor cutting edges at the other one of the rake faces wherein, at each minor side face, a ridge line interconnects an apex of the convex minor edge at the one of the rake faces and an apex of the convex minor cutting edge at the other one of the rake faces. Other variants and embodiments are broadly contemplated herein.

Abstract: A double-sided cutting insert that has a positive clearance face and includes a top portion, a bottom portion substantially identical to the top portion, and a middle portion. The inscribed diameter at the middle portion is larger than the inscribed diameter at each of the top portion and the bottom portion. The double-sided cutting insert having positive clearance face provides a simplified grinding method in order to achieve the dimensional precision required as well as reduced tooling cost allowing both positive and negative double-sided cutting inserts seat in the same insert-receiving pocket on the same tool holder.

Abstract: A multi-component powder compaction mold configured for the production of cutting inserts is disclosed. A top section having a cavity wall forming a top cavity and a bottom section having a cavity wall forming a bottom cavity are stacked and aligned so that the top cavity and the bottom cavity collectively form a mold cavity. The mold cavity has a top cavity wall and a bottom cavity wall.

Abstract: A process for the production of cutting tool inserts is described. A bottom punch is positioned into a powder compaction mold. A metallurgical powder is introduced into a mold cavity. A top punch is positioned into the powder compaction mold in an orientation opposed to the bottom punch. The metallurgical powder is compressed between the bottom punch and the top punch to form a powder compact. Also disclosed are cutting tool inserts produced in accordance with the process and powder pressing apparatuses for the production of cutting tool inserts.

Abstract: A multi-component powder compaction mold configured for the production of cutting inserts is disclosed. A top section having a cavity wall forming a top cavity and a bottom section having a cavity wall forming a bottom cavity are stacked and aligned so that the top cavity and the bottom cavity collectively form a mold cavity. The mold cavity has a top cavity wall and a bottom cavity wall.

Abstract: An optical fiber cleaver with a traversing mechanism and measuring device to impart relative movement between the cleaving blade and fiber holder and precisely control positioning of the blade along the axis of the fiber. In one embodiment, a cleaver blade is mounted on a translation stage which is movable relative to a stationary platform which supports the fiber holder. The cleaver blade mechanism is movable along the stage so as to precisely locate the blade for a cleaving operation. The cleaver is useful for producing stacks of different optical fibers fusion spliced together and ensuring that each fiber in the stack is precisely the correct length to maximize its characteristics. The measuring device or position indicator is coupled to the traversing mechanism and can be calibrated to a start position at the end of a first optical fiber.