Abstract: A method for manufacturing a semi-flex printed circuit board is provided, including: forming two convex metal dam structures and two concave laser cut grooves on a side surface of the core substrate; wherein inner sides of the two metal dam structures form a printing area at the side surface of the core substrate, and the positions of the two laser cut grooves correspond to the printing area; printing a strippable printing ink in the printing area on the core substrate; laminating a build-up board structure on the side surface of the core substrate; and forming two blind routing openings on another side surface of the core substrate, which correspond to the two laser cut grooves in position respectively; removing a cover-opening structure of the core substrate between the two blind routing openings, so as to form a cover-opening opening.

Abstract: A semi-flex printed circuit board with cover-opening opening is disclosed. An inner side of the core substrate surrounds a cover-opening opening. The two metal dam structures are arranged on a side surface of the core substrate; and the two metal dam structures and the core substrate jointly surround the cover-opening opening. The core board is arranged on a side surface of the bonding sheet away from the core substrate. Two sides of a bottom of the core substrate surrounding the cover-opening opening are provided with two laser cutting sidewalls respectively. Sidewalls of the two metal dam structures surrounding the cover-opening opening are connected with the two laser cutting sidewalls respectively and each defined as a metal dam sidewall. An obtuse angle presents between the metal dam sidewall and the laser cutting sidewall.

Abstract: A clamp contains: a body, an actuation rod, and a slow descending device. The body includes a first support sheet, and the actuation rod includes a second support sheet. The body further includes a drive grip, a driven mechanism, and a limitation mechanism. The limitation mechanism has a first spring, multiple first fixing protrusions, and a release lever. The slow descending device includes a second spring, multiple second fixing protrusions, a guide element, and a micro-adjustment handle. The micro-adjustment handle has a pull lever and the second spring 31 surrounds around the actuation ro. The multiple second fixing protrusions accommodate the actuation rod and are pushed by the second spring. The micro-adjustment handle has a third spring and a control lever pushed by the third spring and contacting with the multiple second fixing protrusions.

Abstract: An expandable fixture contains: a first body, a second body, and an actuation rod. The first body includes a first clamp and a grip. The second body includes a connection structure, and the second body includes a second clamp. The first body further includes a drive mechanism configured to pull the actuation rod to drive the first clamp and the second clamp to clamp, a press extension configured to control the drive mechanism, and a first positioning structure vertically corresponding to the actuation rod. The second body includes a second positioning structure rotatably connected on a peripheral side thereof, and each of the first positioning structure and the second positioning structure is a respective one of two T-shaped posts slidably mounted on a respective one of two T-shaped slide rails of a work table.

Abstract: A clamp contains: a first clamping assembly, a second clamping assembly, and a guide shaft. The first clamping assembly includes a base, a first clamper, a first connection member, and a first buffer. The base has a grip, an operation lever, and a release lever. The base further includes a release structure driven by the release lever to remove the base from the guide shaft. The second clamping assembly includes a second clamper, a second connection member, and a second buffer. The first buffer accommodates the guide shaft, and the second buffer is fitted on and is rotated with respect to an outer wall of the second connection member. The second clamper is fitted on the second buffer and the second connection member, the second clamper is rotatable relative to the second connection member, and the second clamper and the second buffer are connected with the second connection member.

Abstract: A supporter for a woodworking table contains: four supporting rods, four driving columns, and two movable adjustment posts. Two middle sections of two of the four driving columns are rotatably connected with two middle sections of the other two of the four driving columns respectively, and one side of each of the four supporting rods is in connection with each of two ends of each driving column. The two movable adjustment posts parallelly correspond to each other, and each end of each of the two movable adjustment posts is rotatably connected with a middle section of each supporting rod. Each movable adjustment post includes an outer tube, an inner tube, and an adjustable stem. Thereby, the supporter of the present invention is collapsible so as to decrease its storage size. The supporter adjustably supports the table board based on a size of the table board.

Abstract: A supporter for a woodworking table contains: four supporting rods, four driving columns, and two movable adjustment posts. Two middle sections of two of the four driving columns are rotatably connected with two middle sections of the other two of the four driving columns respectively, and one side of each of the four supporting rods is in connection with each of two ends of each driving column. The two movable adjustment posts parallelly correspond to each other, and each end of each of the two movable adjustment posts is rotatably connected with a middle section of each supporting rod. Each movable adjustment post includes an outer tube, an inner tube, and an adjustable stem. Thereby, the supporter of the present invention is collapsible so as to decrease its storage size. The supporter adjustably supports the table board based on a size of the table board.

Abstract: A connector contains a body including: a first inserting orifice, a second inserting orifice, a first fixer, and a second fixer. The first inserting orifice is defined on a first end of the body, and the second inserting orifice is formed on a second end of the body opposite to the first end of the body, such that a connection rod for connecting two main woodworking clampers is inserted into the first inserting orifice and the second inserting orifice. The first fixer is inserted into the first inserting orifice from one side surface of the body to fix the connection rod, and the second fixer is inserted into the second inserting orifice from the one side surface of the body to position the connection rod more securely.

Abstract: A method to produce a product includes the steps of: providing a mold including an upper mold (40) and a lower mold (30), the upper mold defining a plurality of through holes (43); providing a metal piece (10), a hot melt adhesive, and a nonmetal cover layer (50) between the upper and lower molds, the hot melt adhesive arranged between the hot melt adhesive and the cover layer; closing the mold; heating the mold to melt the hot melt adhesive; conducting high-pressure gas into the mold via the through holes to press the cover layer toward the metal piece; opening the mold to pick up an intermediary product having the metal piece and the cover layer attached thereto by means of the adhesive; and applying a sealing layer (60) which joins corresponding free edges of the metal piece and the cover layer to the intermediary product through injection molding technology.

Abstract: A method to produce a product includes the steps of: providing a mold including an upper mold (40) and a lower mold (30), the upper mold defining a plurality of through holes; providing a workpiece (10), a hot melt adhesive (25), and a cover layer (50) between the upper and lower molds, the hot melt adhesive arranged between the workpiece and the cover layer; providing a heater (20) to melt the hot melt adhesive; closing the mold; conducting high-pressure gas into the mold via the through holes to press the cover layer toward the workpiece; and opening the mold to pick up the product having the workpiece and the cover layer attached thereto by means of the adhesive.

Abstract: A method to produce a product includes the steps of: providing a mold including an upper mold (40) and a lower mold (30), the upper mold defining a plurality of through holes (43); providing a metal piece (10), a hot melt adhesive, and a nonmetal cover layer (50) between the upper and lower molds, the hot melt adhesive arranged between the hot melt adhesive and the cover layer; closing the mold; heating the mold to melt the hot melt adhesive; conducting high-pressure gas into the mold via the through holes to press the cover layer toward the metal piece; opening the mold to pick up an intermediary product having the metal piece and the cover layer attached thereto by means of the adhesive; and applying a sealing layer (60) which joins corresponding free edges of the metal piece and the cover layer to the intermediary product through injection molding technology.

Abstract: A method to produce a product includes the steps of: providing a mold including an upper mold (40) and a lower mold (30), the upper mold defining a plurality of through holes; providing a workpiece (10), a hot melt adhesive (25), and a cover layer (50) between the upper and lower molds, the hot melt adhesive arranged between the workpiece and the cover layer; providing a heater (20) to melt the hot melt adhesive; closing the mold; conducting high-pressure gas into the mold via the through holes to press the cover layer toward the workpiece; and opening the mold to pick up the product having the workpiece and the cover layer attached thereto by means of the adhesive.

Abstract: A method to produce a product includes the steps of: providing a mold including an upper mold (40) and a lower mold (30), the upper mold defining a plurality of through holes (43); providing a metal piece (10), a hot melt adhesive, and a nonmetal cover layer (50) between the upper and lower molds, the hot melt adhesive arranged between the hot melt adhesive and the cover layer; closing the mold; heating the mold to melt the hot melt adhesive; conducting high-pressure gas into the mold via the through holes to press the cover layer toward the metal piece; and opening the mold to pick up the product having the metal piece and the cover layer attached thereto by means of the adhesive.