A mold tool generally includes a base, a die assembly, a tightening element, a threaded element, and at least one shaping cap. The base defines a cutout, a first threaded hole opposite to the cutout, and a second threaded hole. The die assembly, composed of a first module and a second module, can be inserted into a receiving space of the base. The tightening element can be screwed into the second threaded hole of the base to fix the die assembly in place. The threaded element can be screwed into the first threaded hole of the base. The shaping cap can be fitted at one end of the threaded element. The die assembly defines channels of various diameters each for holding a tube of a specific diameter. The shaping cap can urge one end of a tube held in the die assembly to form a specific type of flare.

A hot clamping method includes: blanking to cut a material; cold-working to cool down the cut material to produce a product having a shape of a completed product; heating the cooled product in a heating furnace; and clamping cooling to set the heated product in a clamp to clamp it so that it is in contact with the clamp to be cooled down.

A hot clamping method includes: blanking to cut a material; cold-working to cool down the cut material to produce a product having a shape of a completed product; heating the cooled product in a heating furnace; and clamping cooling to set the heated product in a clamp to clamp it so that it is in contact with the clamp to be cooled down.

Machines for bending profiles, metal sheets and the like are provided. Such machines include those having a structure or frame and a bending device with three rollers. The axis (x.sub.1) of the first roller is fixed relative to the structure or frame, while the axes (x.sub.2, x.sub.3) of the second and third rollers are movable relative to each other, and hence each relative to the axis (x.sub.1) of the first roller, so as to define a curved path with an adjustable radius of curvature along which the material to be bent is caused to move passing between said rollers. The bending device may further include an adjustment mechanism for adjusting the position of the axes (x.sub.2, x.sub.3) of the second and third rollers with two degrees of freedom. The adjustment mechanism may include a pair of tilting arms hinged to the structure or frame so as to tilt about respective fixed axes of rotation (x.sub.4, x.sub.5) oriented parallel to the axes (x.sub.1, x.sub.2, x.sub.3) of the three rollers. The axes (x.sub.2, x.sub.3) of the second and third rollers may be guided each by a respective tilting arm along a respective direction of translation (y.sub.1, y.sub.2) which is fixed relative to that tilting arm.

Machines for bending profiles, metal sheets and the like are provided. Such machines include those having a structure or frame and a bending device with three rollers. The axis (x.sub.1) of the first roller is fixed relative to the structure or frame, while the axes (x.sub.2, x.sub.3) of the second and third rollers are movable relative to each other, and hence each relative to the axis (x.sub.1) of the first roller, so as to define a curved path with an adjustable radius of curvature along which the material to be bent is caused to move passing between said rollers. The bending device may further include an adjustment mechanism for adjusting the position of the axes (x.sub.2, x.sub.3) of the second and third rollers with two degrees of freedom. The adjustment mechanism may include a pair of tilting arms hinged to the structure or frame so as to tilt about respective fixed axes of rotation (x.sub.4, x.sub.5) oriented parallel to the axes (x.sub.1, x.sub.2, x.sub.3) of the three rollers. The axes (x.sub.2, x.sub.3) of the second and third rollers may be guided each by a respective tilting arm along a respective direction of translation (y.sub.1, y.sub.2) which is fixed relative to that tilting arm.

A hot clamping method includes: blanking to cut a material; cold-working to cool down the cut material to produce a product having a shape of a completed product; heating the cooled product in a heating furnace; and clamping cooling to set the heated product in a clamp to clamp it so that it is in contact with the clamp to be cooled down.

A hot clamping method includes: blanking to cut a material; cold-working to cool down the cut material to produce a product having a shape of a completed product; heating the cooled product in a heating furnace; and clamping cooling to set the heated product in a clamp to clamp it so that it is in contact with the clamp to be cooled down.

A tool holder for locating and seating varieties of differing tools. The tool holder is usable with press brake tools as well as tools for other industrial machines and equipment. The tool holder includes a clamp and a supporting body. The clamp is an assembly and, via collective operation of its components, functions with the supporting body to locate and seat tools of a variety of differing styles, sizes, and geometries.

A tool holder for locating and seating varieties of differing tools. The tool holder is usable with press brake tools as well as tools for other industrial machines and equipment. The tool holder includes a clamp and a supporting body. The clamp is an assembly and, via collective operation of its components, functions with the supporting body to locate and seat tools of a variety of differing styles, sizes, and geometries.

A punching apparatus for forming workings on a workpiece has a punch holder unit, which includes an upper support body rotatable about a working axis, a punch holder body that houses a plurality of upper forming tools and an upper beating element movable parallel to the working axis to selectively interact with an established upper forming tool, and a die holder unit that includes a lower support body rotatable about the working axis, a die holder body that houses a plurality of lower forming tools and a lower beating element movable linearly along and rotatably about the working axis to selectively interact with an established lower forming tool. The lower beating element is movable linearly between an non-operative position, a first operative position, and a second operative position.