A method for manufacturing a metal card includes: a step for forming a metal card by laminating a stack of sheets in which are stacked a plurality of sheets, centered on a metal sheet, including adhesive sheets having the same size as the metal sheet, an upper inlay sheet having a first antenna, and a lower inlay sheet having a second antenna; a step for forming a COB accommodation space, which can accommodate a COB, by milling a certain area of the metal card using computerized numerical control (CNC) machining; a step for forming a through-hole, which exposes the first antenna and the second antenna, by milling a COB contact point region of the COB accommodation space down to the lower inlay sheet; a step for electrically connecting the first antenna and the second antenna by dispensing a conductive elastic liquid into the through-hole; and a step for bidirectionally connecting the first antenna and the second antenna to the COB by attaching the COB within the COB accommodation space so that the COB contact point is connected by the conductive elastic liquid.

A method for manufacturing a metal card includes: a step for forming a metal card by laminating a stack of sheets in which are stacked a plurality of sheets, centered on a metal sheet, including adhesive sheets having the same size as the metal sheet, an upper inlay sheet having a first antenna, and a lower inlay sheet having a second antenna; a step for forming a COB accommodation space, which can accommodate a COB, by milling a certain area of the metal card using computerized numerical control (CNC) machining; a step for forming a through-hole, which exposes the first antenna and the second antenna, by milling a COB contact point region of the COB accommodation space down to the lower inlay sheet; a step for electrically connecting the first antenna and the second antenna by dispensing a conductive elastic liquid into the through-hole; and a step for bidirectionally connecting the first antenna and the second antenna to the COB by attaching the COB within the COB accommodation space so that the COB contact point is connected by the conductive elastic liquid.

In an ultrasonic machining apparatus having leaf springs composed of fiber-reinforced plastic, the leaf springs are provided with a reinforcement in the region of a clamping.

In an ultrasonic machining apparatus having leaf springs composed of fiber-reinforced plastic, the leaf springs are provided with a reinforcement in the region of a clamping.

The machining method uses a tool to machine a workpiece set in a jig, the workpiece has a plate-like web part arc-shaped in plan view and a flange part bent and arranged vertically from an edge along the arc shape, the tool has an end cutting edge and a peripheral cutting edge, and the jig has a surface where the web part is placed and a contacting surface where the flange part comes into surface contact. The machining method includes: pressing the flange part against the contacting surface; cutting the flange part by the peripheral cutting edge by feeding the tool in an arc direction of the arc shape; and cutting the web part by the end cutting edge by feeding the tool in the arc direction.

The machining method uses a tool to machine a workpiece set in a jig, the workpiece has a plate-like web part arc-shaped in plan view and a flange part bent and arranged vertically from an edge along the arc shape, the tool has an end cutting edge and a peripheral cutting edge, and the jig has a surface where the web part is placed and a contacting surface where the flange part comes into surface contact. The machining method includes: pressing the flange part against the contacting surface; cutting the flange part by the peripheral cutting edge by feeding the tool in an arc direction of the arc shape; and cutting the web part by the end cutting edge by feeding the tool in the arc direction.

There is provided a guide dresser for milling a saw guide, the guide dresser comprising first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. There is also provided cutter heads and methods for milling a saw guide.

There is provided a guide dresser for milling a saw guide, the guide dresser comprising first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. There is also provided cutter heads and methods for milling a saw guide.

A guide dresser for milling a saw guide is disclosed herein. The guide dresser includes a guide mount assembly for adjustably moving a saw guide between an upper and lower position and first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. Cutter heads and methods for milling a saw guide are also disclosed.

A cutting tool for face milling includes insert pockets for the fixing of cutting insert. The cutting inserts can be fixed in the insert pockets, wherein the cutting inserts and insert pockets are designed such that, when the cutting inserts are fixed within the corresponding insert pocket, each cutting insert presents: a primary and a secondary cutting edge. The intersection between the primary and the secondary cutting edge of one cutting insert being axially inwardly and radially outwardly offset from the intersection between the primary and the secondary cutting edge of another cutting insert. A lead angle defined between the primary and the secondary cutting edges is less than 30°.