A system for forming apertures in a flexible film is provided. The system includes a punching tool for forming apertures in a flexible film. The punching tool defines a through hole therethrough. The system also includes a support plate. The punching tool is configured to press the flexible film against the support plate to form the apertures.

A high-moisture-permeability, microporous plastic film randomly having a lot of recesses having different opening diameters and depths, with clefts formed in the recesses, is produced by pressing a first pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface to a flat-surface metal roll, to produce an anvil roll randomly having a lot of recesses on a metal roll surface; arranging a second pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface oppositely to the anvil roll; and passing a plastic film through a gap between the second pattern roll and the anvil roll.

A device for taking a sample from a solid body by cutting out, having a frame and a cutting tool retained on the frame in such a way that the cutting tool can be moved relative to the frame, wherein the cutting tool, at least in parts, at least substantially has the shape of a hollow spherical cap or a hollow spherical segment. A method for taking a sample from a solid body by cutting out is implemented with the device.

A cutting blade, which can cut an insulating film while suppressing exfoliation of the insulating film such as a Low-k film that is likely to be exfoliated upon cutting, is demanded. A cutting blade, that can meet this demand, has a binder and abrasive particles, in which the abrasive particles are fixed by the binder at least part of which is glassy carbon.

Produced is an iron-based sintered alloy in which hard particles derived from a titanium carbide powder are dispersed in the form of islands in a matrix comprising a two phase structure of austenite+martensite. The iron-based sintered alloy is obtained by mixing the titanium carbide powder, a Cr powder, a Mo powder, a Co powder, a Fe powder and a powder of Al, Ti or Nb so as to obtain a mixed powder that contains, in terms of mass %, 20-35% of titanium carbide, 3.0-12.0% of Cr, 3.0-8.0% of Mo, 8.0-23% of Ni, 0.6-4.5% of Co and 0.6-1.0% of Al, Ti or Nb, with the balance Fe, and then subjecting the mixed powder to cold isostatic compression molding, vacuum sintering and solution treatment.

The invention relates to nickel-coated hexagonal boron nitride nanosheet composite powder, its preparation and high-performance composite ceramic cutting tool material. The composite powder has a core-shell structure with BNNS as the core and Ni as the shell. The self-lubricating ceramic cutting tool material is prepared by wet ball milling mixing and vacuum hot-pressing sintering with a phase alumina as the matrix, tungsten-titanium carbide as the reinforcing phase, nickel-coated hexagonal boron nitride nanosheet composite powder as the solid lubricant and magnesium oxide and yttrium oxide as the sintering aids. The invention also provides preparation methods of the nickel-coated hexagonal boron nitride nanosheet composite powder and the self-lubricating ceramic cutting tool material.

A high-moisture-permeability, microporous plastic film randomly having a lot of recesses having different opening diameters and depths, with clefts formed in the recesses, is produced by pressing a first pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface to a flat-surface metal roll, to produce an anvil roll randomly having a lot of recesses on a metal roll surface; arranging a second pattern roll randomly having a lot of high-hardness, fine particles having sharp edges on a roll body surface oppositely to the anvil roll; and passing a plastic film through a gap between the second pattern roll and the anvil roll.

A method of forming a cut in a polymeric component includes providing a blade assembly including at least one blade, and a mandrel. The mandrel includes a rigid portion and a conformal support ring. The conformal support ring includes a material softer than the material forming the blade. A polymeric component is located between the mandrel and the at least one blade. The polymeric component is cut via the at least one blade. The at least one blade extends into the conformal support ring after the at least one blade has penetrated through the polymeric component.

A blade (6) for underwater granulation of an extruded polymer, this blade has a plate (60) bounded by a contour including a cutting edge contour (61) having a first end (62) and a second end (63), and an outer contour (64) linking the first end (62) and the second end (63) of the cutting edge contour (61). The outer contour (64) has at least a first bearing portion (65) and a second bearing portion (66), the first bearing portion (65) and the second bearing portion (66) diverging while extending away from the cutting edge contour (61) and configured to be received in a dovetail housing (13).

A coated cutting tool for chip forming machining of metals includes a substrate having a surface coated with a chemical vapour deposition (CVD) coating. The substrate is coated with a coating having a layer of -Al.sub.2O.sub.3, wherein the -Al.sub.2O.sub.3 layer exhibits a texture coefficient TC(0 0 12)7.2 and wherein the ratio of I(0 0 12)/I(0 1 14)0.8. The coating further includes a MTCVD TiCN layer located between the substrate and the -Al.sub.2O.sub.3 layer. The MTCVD TiCN layer exhibits a pole figure, as measured by EBSD, in a portion of the MTCVD TiCN layer parallel to the outer surface of the coating and less than 1 m from the outer surface of the MTCVD TiCN, wherein a pole plot based on the data of the pole figure, with a bin size of 0.25 over a tilt angle range of 045 from the normal of the outer surface of the coating shows a ratio of intensity within 15 tilt angle to the intensity within 045 of 45%.