30results about How to "Less machining" patented technology

A fastener system shifting shear stresses away from a collet body and provides clamping action to targeted structures. The fastener system includes feet in the collet body that mate with openings in a sleeve at least partially surrounding the collet body. The sleeve or the collet body includes interior threads that engage with a stud that is configured to extend through the collet body and bend the feet such that they project outward from the sleeve openings in an engaged configuration.

A rotary cutter drum includes a cutter portion formed of a multiphase material and includes first and second substantially cylindrical, radially outwardly exposed surfaces, and a knife member formed of one piece with the exposed surfaces and arranged to axially separate the first and second surfaces from one another. The knife member protrudes by a distance in the range of 1 to 5 mm radially outwardly beyond a smallest diameter portion of the first and second exposed surfaces. The knife member includes two sides terminating at respective ones of the first and second exposed surfaces.

A dental handpiece (10) of the type having a body (11), a head (13) and a neck (12), is improved by having at least one portion of the handpiece (10) formed by metal injection molding or MIM. The use of MIM allows for improved fabrication and function. According to one aspect of the invention, the head (13) and neck (12) of the handpiece (10) are MIM-formed as a single or unitary piece.

The invention discloses a positioning method for a wrapped sand core and a positioning structure for a foundry sand core, aiming at providing a positioning method for a wrapped sand core and a positioning structure for a foundry sand core which have reliable and steady sand core positioning, high production efficiency, realize casting with a complex cavity inner structure easily and improve the qualified rate of castings effectively. The positioning structure comprises a main sand core and a sub sand core, wherein product molding parts and embedding par are arranged on the main sand core and the sub sand core; the positioning method comprises the following steps of: firstly, dividing the main sand core into a first main sand core and a second main sand core; forming dividing surfaces on the first main sand core and the second main sand core; then arranging limiting slots for containing the embedding part of the sub sand core on the dividing surfaces of the first main sand core and the second main sand core; and finally, clamping the embedding part of the sub sand core in the limiting slot through the first main sand core and the second main sand core, and positioning the first main sand core, the second main sand core and the sub sand core on a mould through the embedding part of the main sand core.

A tool changer is composed of a support shaft, a forward / backward movement drive motor moving the support shaft upward and downward, a rotation drive motor rotating the support shaft about an axis, a tool change arm having tool grippers formed at both ends thereof, and an air blow mechanism discharging compressed air to a tool and a next tool gripped by the tool grippers. In tool change using this tool changer, in a positioning operation, the tool change arm is rotated by degrees and compressed air is discharged toward the tool and the next tool by the air blow mechanism.

The invention discloses a precision forming method of a large high-strength aluminum alloy forged piece. The precision forming method comprises the steps of designing a forged piece and a mould, designing and manufacturing a prefabricated blank, forming the prefabricated blank into the forged piece in an isothermal forging manner, and the like. With the precision forming method, a large complicated aluminum alloy forged piece with a high-strength plate can be manufactured; compared with a casting piece, the forged piece is more compact in structure and fewer in defects, and the machining treatment required by the forged piece is little; the forged piece belongs to a near net shape forming precision forged piece; the product quality is greatly improved.

A method of manufacturing a hollow aerofoil component for a gas turbine engine includes using a capping panel to cover a pocket in a pocketed aerofoil body. During manufacture, the outer surface of the capping panel is located relative to the pocketed aerofoil body. This ensures that the outer surface of the capping panel is located as accurately as possible. This means that the capping panel can be made to be as thin as possible, which in turn reduces weight and material wastage. Once the capping panel has been located in position, it may be welded to the aerofoil body in order to produce the hollow aerofoil component.