摘要:
An impeller for a fluid transmitting device includes a hub and a bowl-shaped shell connected to an outer peripheral portion of the hub via an annular weld seam. An inner peripheral surface of the shell is fitted to an outer peripheral surface of the hub, and the weld seam is formed therebetween by laser welding over an entire length of fitting depth. Thus, it is possible to form the annular weld seam between the hub and the shell with a relatively small amount of heat input, and to precisely perform a visual inspection as to whether the weld seam is good or not without any skill.
摘要:
Improved process for manufacturing ring-type metal joints for high pressure ducts, characterized because it presents the following steps: a) oval bar manufacturing and b) ring-type metal joints manufacturing, wherein the oval bar manufacturing comprises the following steps: submitting a round metal bar to a sharpening treatment before it is drawn through a die and forming the oval bar; cutting, rolling, and bending said oval bar and welding the profile; submitting the joint to an electrolytic coating treatment.
摘要:
A method is disclosed for manufacturing a multi-part component that dampens vibration and noise caused by forces acting on the component. A pre-formed first part is treated for application of a resilient material. The material is dissolved in a solvent and is selectively applied to areas of the first part that are subject to strong forces. A second part is mechanically attached to the first part, and the entire component is cured so that the resilient material is cured, the solvent is evaporated and the parts are bonded together.
摘要:
A vehicle body includes an underbody having one or more underbody bolting flanges attached thereto, with each underbody bolting flange being adapted for bolted attachment to a mating bodyside bolting flange. Left and right bodyside subassemblies are joined to the underbody, with each bodyside including a supplemental bodyside support structure having attached thereto one or more bodyside bolting flanges, with each bodyside bolting flange being adapted for bolted attachment to one of the underbody bolting flanges after the bodyside subassemblies are otherwise joined to the underbody. The underbody bolting flanges are attached to supplemental cross members that are attached to and extend across the underbody.
摘要:
Alternative designs, materials and manufacturing methods for medical devices. Some embodiments disclosed deal with attachment of an elongated structure, such as a wire or ribbon, or a tubular member, such as a coil, to an elongated member in an elongated device. For example, an elongated core member having defining an outer surface, and an elongated structure including a first portion and a second expanded portion along the length thereof can be provided. An attachment member, such as a centering ring, or the like, is disposed about a portion of the elongated core member and a part of the first portion of the elongated structure. The attachment member defines a lumen and having an inner surface. Part of the first portion of the elongated structure is disposed between the inner surface of the attachment member and the outer surface of the elongated core member. A part of the second portion of the elongated structure is in mechanical engagement with the inner surface of the attachment member and the outer surface the elongated core member to provide a mechanical coupling of the elongated structure between the attachment member and the elongated core member. Some embodiments provide a method of making such a construction, wherein the elongated structure can be moved relative to the attachment member such that the second portion of the elongated structure engages the inner surface of the attachment member and the outer surface the elongated core member to mechanically couple the elongated structure to the elongated core member.
摘要:
A drill member for percussive rock drilling is formed by forming a compound component and friction welding the compound component to the end of a drill rod. The compound component is formed by welding a core part within a shell part and machining a thread into either the shell part (male thread) or core part (female thread). The part in which the thread is machined is formed of low alloy steel, and the other part is formed of stainless steel, wherein the thread bottom is formed of stainless steel, and the thread crests are formed of low alloy steel.
摘要:
Disclosed is a drum-type washing machine having a tub provided therein for storing wash water with an improved structure, the tub including a center tub formed in a hollow cylindrical form for rotatably providing a drum therein; and a back tub including a base plate for covering a rear side of the center tub, a first bending part bent backward from an outline of the base plate, and overlapped on an inner surface of the center tub, and a second bending part bent frontward from the first bending part, and overlapped on an outer circumferential surface of the center tub.
摘要:
The present invention resides in a golf club head having a high COR that is durable and has desirable acoustic qualities. The club head includes a body portion, a striking face and a crown forming a hollow cavity of at least 150 cc in volume. The body portion defines a front opening and an upper opening, and it includes a sole and a side section that extends rearward of the front opening. The striking plate is secured to the body portion, enclosing the front opening. While partially assembled, final weighting and/or other attachment of other members to the inner surface of the club head can be preformed, as desired. The crown is secured to the body portion, enclosing the upper opening. A surface veil may also be provided about a junction of the crown and body. The crown has a maximum thickness no greater than about 2 mm. The density of the crown is less than the density of the body portion. At least one of the striking plate and the crown is attached to the second portion by adhesive bonding, and the golf club head has a maximum coefficient of restitution of at least 0.80.
摘要:
A system and method are provided for both recharging and communicating with a stimulator having a rechargeable battery, which stimulator is implanted deeply in the body, in particular where the stimulator is a microstimulator, the system includes a base station and an external device, for instance a chair pad. The chair pad may contain an antenna/charging coil and a booster coil. The antenna/charging coil can be used for charging the rechargeable battery and also for communicating with the stimulator using frequency shift keying and on-off keying. The booster coil can be used to recharge a battery depleted to zero volts. The base station connected to the chair pad may be used to power the antenna/charging coil and the booster coil.
摘要:
An engine fuel injector body is assembled using a furnace brazing method to provide structural and hermetic internal joints at interior locations with minimum size and processing. The method of assembling an injector with such an internal hermetic and structural joint may include the steps of providing an annular body member with an annular inner recess having an inner cylindrical surface, forming an annular end recess adjoining the cylindrical surface, fitting a tubular member into the inner recess of the body member with an outer surface of the tubular member engaging the cylindrical surface of the inner recess, placing a brazing ring in the end recess of the body member adjacent the tubular member, and furnace brazing the members together to form the internal hermetic and structural joint. Additional joints may be joined during the same brazing step.