A cutting apparatus and a method for chamfering a film stack using the cutting apparatus. The chamfering method reduces microcracks generated in the film stack during curved surface chamfering, reduces the maximum stress applied to the film stack, prevents lifting, and enables processing of a curved surface.

A tool for removing burrs/flash from a work piece includes a linear body having a cutter/abrasive end and an opposite shank end. The shank end is adapted for attachment to a rotary power source. At least one bushing is secured to the linear body, the bushing allowing rotation of the tool there within while an outer portion of the bushing remains stationary.

The present invention provides a material for built up edge formation having a resin block containing a high molecular weight compound having a weight average molecular weight of 510.sup.4 or higher and 110.sup.6 or lower, a medium molecular weight compound having a weight average molecular weight of 110.sup.3 or higher and lower than 510.sup.4, and a carbon.

The invention relates to a method for manufacturing parts of acetate eyeglass frames from an acetate plate. The plate is designed with length and height dimensions defining a surface area that encompasses the perimeter boundary of the body of the frame part to be manufactured, and with a thickness the value of which is at least equal to the maximum transverse dimensions of the three-dimensional shape of the body of the frame part itself and extends evenly over the entire surface defined by the length and the height of the plate. The method also comprises the step of forming a cut within the surface dimensions of the plate along the perimeter boundary of the body of the eyeglass part to be manufactured, excepting a pair of portions of said boundary, thereby leaving said portions connected to the plate, and the step of forming the three-dimensional shape of the frame part body by removing material from the thickness of the plate. The same method also comprises the step of forming the lens seats, the grooves for receiving lenses within their seats, a nose bridge, bridge arms, and the endpieces for connection to the temples. The invention further relates to an apparatus for carrying out the process and an eyeglass frame so manufactured.

A facer for use in preparing the opposed ends of polyolefin pipes for fusion into a pipeline has a pair of cutting wheels which rotate in unison. A controller causes the cutting wheels to trace and face the pipe end walls in a closed loop path.

A milling device having a first milling station with a first workpiece spindle capable of rotating about a first spindle axis A1 intended to receive a first lens blank and with a first milling tool with first cutters capable of rotating about a first milling axis FA1 intended for machining a received first lens blank. At least one second milling station with a second workpiece spindle capable of rotating about a second spindle axis A2 receives a second lens blank, and with a second milling tool with second cutters capable of rotating about a second milling axis FA2 machining the received second lens blank, the spindle axes A1, A2 being aligned parallel to one another, the milling axes FA1, FA2 being aligned parallel to one another, and obliquely aligned to the spindle axes A1, A2. The invention also includes a method for the operation of the milling device.

In one embodiment, a holder includes a body part elongated from a first end part to a second end part along a rotation axis. The body part includes a first member, a second member, and a third member. The first member is located on a side of the first end part, and includes a pocket to receive a cutting insert. The second member is located closer to the second end part than the first member, and includes at least one cavity inside the second member. The third member is located closer to the second end part than the second member.

A rotatable cutting tool includes an elongate body and at least one helical flute extending over a length of the elongate body, the helical flute having a first end and a second end. The flute includes a cutting-edge with a first radius from a longitudinal center of the cutting tool, a trailing edge with a second radius from a longitudinal center of the cutting tool, wherein the second radius is smaller than the first radius, a flute surface between the cutting-edge and the trailing edge, the flute surface including a maximum radius at the cutting-edge and a plurality of foam chip shedding exclusions spaced along the cutting-edge of the helical flute, each of the foam chip shedding exclusions providing a gap in the cutting-edge where the radius within the gap is smaller than the first radius. The first radius defines a maximum tool cutting radius for the cutting tool. A gap distance between the foam chip shedding exclusions and the maximum tool cutting radius equals at least 15% of a radial height of the flute.

Provided is a print bar. The print bar comprises a reference element to align the print bar with a mounting structure of a printer. The print bar further comprises a flat elongate sheet metal portion with constant height whose length is larger than its width and whose width is larger than its height. Moreover, the print bar comprises a plurality of plastic members detachably mounted to a mounting surface of the flat elongate sheet metal portion. The plurality of plastic members is spaced apart from each other in the length direction.

A milling tool for an angle grinder has a supporting body, in the shape of a disk and able to be rotationally driven in a direction of rotation, which has an upper side and an underside. The supporting body is formed as a composite body of fiber-reinforced plastic. Cutting element chambers are formed in the supporting body, open to underside, in each of which one cutting element is replaceably arranged.