A method of manufacturing a sport ball includes providing a plurality of casing panels including a first panel and a second panel. The first panel has a first surface and an opposite second surface. The first panel includes a first flange area forming a first edge portion of the first panel. The second panel has a third surface and an opposite fourth surface. The second panel includes a second flange area forming a second edge portion of the second panel. The method includes turning the first flange area away from the first surface of the first panel, turning the second flange area away from the third surface of the second panel, abutting the first flange area and the second flange area, and joining the first panel to the second panel.

A method of mechanically securing a first object including a thermoplastic material in a solid state to a second object with a generally flat sheet portion, with a perforation of the sheet portion, and with the sheet portion having an edge along the perforation is provided, wherein the first object is positioned relative to the second object so that the edge is in contact with the thermoplastic material and wherein mechanical vibration energy is coupled into the assembly including the first and second objects until a flow portion of the thermoplastic material due to friction heat generated between the edge and the thermoplastic material becomes flowable and flows around the edge to at least partially embed the edge in the thermoplastic material. After the mechanical vibration stops, the thermoplastic material is caused to re-solidify, whereby the re-solidified thermoplastic material at least partially embedding the edge anchors the first object in the second object.

A suspension arm includes an arm portion and coupling portions, and the suspension arm is integrally made of a fiber reinforced plastics in entirety. The entire arm portion is made of a random fiber reinforced plastics. Each of the coupling portions is made of a continuous fiber reinforced plastics in which continuous fibers are oriented along a circumferential direction of an insertion hole over a region on a distal end side of the suspension arm, which continuously extends by at least a half circumference around a center axis of the insertion hole, the region including a position crossing a flat plane that is orthogonal to a straight line connecting center points of the insertion holes of elastic bushes and passes through the center point of the insertion hole.

One or more metal printing techniques are described for generating a three-dimensional metal structure, such as a one-dimensional or two-dimensional anti-scatter grid. The techniques comprise applying a thin layer of powdered metal onto a printing area and using a binder (which is printed onto the printing area according to a specified pattern) to bind the powdered metal particles together. The acts of applying powdered metal and a binder may be repeated a plurality of times until a three-dimensional metal structure having a specified height is created. Moreover, in one embodiment, once the layering is complete, another binder is applied to the one or more layers to provide strength and/or support. While heat may be used in some embodiments to activate one or more of the applied binders the three-dimensional metal structure is generally not heated to a melting point of the powdered metal.

A wire grid structure and a manufacturing method therefor, and a projection screen are provided. The manufacturing method includes: extruding a molten mixed material body in a melt extruder to a casting roll to form a casting piece; patterning the casting piece by means of an impression roll to form a precursor having a preset wire grid structure pattern, where the precursor is wound on the impression roll and has a first dimension in a height direction; stretching the precursor by a first group of stretching rolls and a second group of stretching rolls in two opposite directions along a direction perpendicular to the height direction to form the wire grid structure, a preset distance being configured between the first group of stretching rolls and the second group of stretching rolls. The wire grid structure has a second dimension in the height direction that is greater than the second dimension.

Four gates are provided in one end surface of the inner cylinder cavity section of an injection molding die along the circumferential direction of an inner cylinder cavity section. The gates are disposed in intermediate parts between a first central line and a second central line when the first central line passes through the center of the inner cylinder cavity section in parallel to the X-axis and the second central line passes through the center of the inner cylinder cavity section 1 in parallel to the Y-axis on an X-Y plane orthogonal to a central axis of the inner cylinder cavity section. The gates are opened in the positions in which the filling rate is apt to reduce in the filter portion cavity section and the gates are not opened in the positions in which the filling rate is apt to increase in the filter portion cavity section.

A method for depositing a structure comprising interdigitated materials includes merging flows of at least two materials in a first direction into a first combined flow, dividing the first combined flow in a second direction to produce at least two separate flows, wherein the second direction is perpendicular to the first direction, and merging the two separate flows into a second combined flow.

A third cavity part for forming a filter part of a mesh filter has opening forming pins of the same number as that of openings for forming regular-octagonal openings of the filter part. The opening forming pins are formed at regular intervals along an X-axis direction and a Y-axis direction, and a diameter of an inscribed circle of the regular octagon is equivalent to the dimension between the adjacent opening forming pins along the X-axis direction and along the Y-axis direction. The interval between a first line and a second line adjacent to the first line of the opening forming pins formed at regular intervals along a direction at 45 to the X-axis direction is equivalent to the interval between a third line and a fourth line adjacent to the third line of the opening forming pins formed at regular intervals along a direction at 135 to the X-axis direction.

A cascade for a jet engine thrust reverser is fabricated by co-consolidating pre-consolidated thermoplastic strongbacks and vanes. The strongbacks are reinforced with continuous fibers, and the vanes are reinforced with discontinuous fibers.

Systems and methods for manufacturing laser-perforated nanoreinforced materials are disclosed. A honeycomb core may utilize a perforated top sheet and a microperforated overlay film coupled to the perforated top sheet. The perforated top sheet and/or the microperforated film may include thermally conductive nanomaterials. The perforations in the top sheet and the microperforations in the film may be laser drilled. The nanomaterials may dissipate heat generated by the laser drilling, allowing for increased perforation speeds.