Abstract: A method is provided for producing a dental prosthesis from a blank using a CAD/CAM device, wherein the blank consists partially of base material and partially of tooth material, and a boundary surface between these materials is formed as a wave, the wave crests and wave valleys of which alternate with each other along the outer periphery of the blank. The apex of each wave crest extends substantially radially with respect to the blank. The CAD/CAM device fixes the position of a retention part, which serves to fasten the prosthesis to the alveolar crest of a patient, in particular of an external telescope, of a cover of a bar, or of an abutment in the prosthesis in such a way that it passes through the boundary surface. The retention part is fastened by means of gluing or incorporation by polymerisation.

Abstract: The present invention proposes an in-situ freezing machining method for an integrated thin-walled array structure. In the method, the area among cups is cut off first; then, the outer walls of a cup array are machined; and finally, water filling and freezing are carried out, and in-situ freezing machining of the inner walls of the cup array is carried out. Then, hoisting and turning over are carried out, and the area among cavities is cut off; then, the outer walls of a cavity array are machined; and finally, water filling and freezing are carried out, and in-situ freezing machining of the inner walls of the cavity array is carried out. The method realizes in-situ freezing clamping of workpieces, avoids error accumulation caused by repeated installation of a fixture, and can refrigerate efficiently, suppress ambient and cutting thermal interference, and ensure the stability of freezing fixture.

Abstract: The present invention relates to a system and its control method for press-fit equipment for shaft-hole fit parts. The automatic press-fit control system mainly includes a control center, a loading and unloading control subsystem, a visual inspection subsystem, and a press-fit control subsystem, and each subsystem communicates with the control center through a communication interface. The control center automates the operation of each subsystem independently, such as the product loading and unloading process, the visual inspection process, and the press-fit process through the control center.

Abstract: A method for manufacturing a timepiece element, such as an applique, to be mounted on a timepiece component, such as a dial of a timepiece, includes producing a blank of the timepiece element from an injection overmoulding of injectable material into a cavity of a mould. The cavity is defined by the association of at least one impression of a first part of the mould with a second part of the mould including an inlet orifice of the cavity for injecting the material into the cavity. The method also includes finishing the timepiece element including applying a coating on the blank of the timepiece element overmoulded on the second part, and withdrawing the finished timepiece element from the second part, which includes breaking an injection point connecting the timepiece element to the second part in preparation for mounting thereof on the timepiece component.

Abstract: A robotic device includes four or more legs and is configured to crawl over a surface of a wind turbine blade for inspection of and/or maintenance of the wind turbine blade. The robotic device may be programmed to crawl along a leading edge of the wind turbine blade to conduct inspection and/or maintenance of the leading edge of the wind turbine blade. The device may include a body defining a longitudinal axis, a row of legs arranged on opposite sides of the body. The legs may each include two or more articulated limb segments and a foot. The foot may include a suction cup for securing the robotic device to the wind turbine blade.

Abstract: The invention relates to additively manufactured dental devices comprised of a denture base and at least one removable bracing body joined at specific locations to the denture base. The invention also relates to methods of using these additively manufactured dental devices in the fabrication of dental prostheses.

Abstract: A fastening system for a WC flap element, which can be flapped away from a support surface of a toilet bowl, comprising at least one mounting bolt extending along a center axis with a receiving portion, a stop portion for direct or indirect support on the support surface of the toilet bowl and a threaded portion, a hinge support, for mounting the WC flap element, with at least one mounting opening into which the receiving portion of the mounting bolt projects, and a non-rotatably mounted mating thread, into which the threaded portion of the mounting bolt engages. In the installed position, the center axis of the mounting bolt extends substantially at a right angle with respect to the horizontal. The receiving portion comprises a drive structure and the mounting opening is open toward the top, so that the drive structure is accessible and actuatable from the top.

Abstract: A method for assembling parts in an assembly line, such as an automotive final assembly line, is disclosed. The method includes advancing a part along the assembly line with an Automated Guided Vehicle (AGV), arranging a first real time vision system to monitor the position of the AGV in at least two directions, and providing the readings of the first real time vision system to a controller arranged to control an assembly unit of the assembly line to perform an automated operation on the part that is advanced or supported by the AGV. An assembly line is also disclosed.

Abstract: A method for increasing load capacity of a surface-hardened rolling bearing raceway of a rolling bearing ring element may involve providing a rolling bearing ring element with an unhardened core region and, at least in certain portions, an outer layer hardened to a surface hardening depth. A rolling bearing raceway may be formed in a region of the hardened outer layer. The method may further involve hard rolling the rolling bearing raceway with a roll. The diameter of the roll is 8 to 25 times the surface hardening depth. A surface pressure prevailing in a rolling contact between the roll and the rolling bearing raceway during the hard rolling is between 2000 MPa and 3300 MPa. The method further involves machining the rolling bearing raceway after the hard rolling.

Abstract: A minimally invasive system using a surgical robot as a three-dimensional printer for fabrication of biological tissues inside the body of a subject. A preoperative plan is used to direct and control both the motion of the robot and the robotic bio-ink extrusion. The robotic motion is coordinated with the ink extrusion to form layers having the desired thickness and dimensions, and use of different types of ink enables composite elements to be laid down. Such systems have a small diameter bio-ink ejecting mechanism, generally in the form of a piston driven cannula, enabling access to regions such as joints, with limited space. The robotic control is programmed such that angular motion takes place around a pivot point at the point of insertion into the subject. The bio-inks can be stored in predetermined layers in the cannula to enable sequential dispensing from one cannula.

Abstract: A medical apparatus remanufacturing method includes: disassembling a housing including a first housing and a second housing. The first housing can include a boss that is press-fitted to a boss hole of a press-fitted portion of a second housing to form an assembled state in which the first housing and the second housing are assembled to each other. The housing is disassembled by changing a temperature of at least one of the boss or the press-fitted portion to decrease a contact surface pressure between the boss and the boss hole, and removing the boss from the boss hole to release the assembled state.

Abstract: A crimper for altering an implantable medical device from an uncompressed state to a compressed state. The crimper includes a plurality of crimper elements that define a crimper channel, each of the crimper elements including a non-planar surface that forms a portion of the crimper channel. Each non-planar surface is configured to apply non-uniform radial compression along a length of the implantable medical device during operation of the crimper when altering the implantable medical device from the uncompressed state to the compressed state. The crimper also includes handle configured to operate the crimper. Actuation of the handle decreases a volume of the crimper chamber to transition the implantable medical device from the uncompressed state to the compressed state.

Abstract: Embodiments of a crimping device for crimping a radially expandable and compressible prosthetic valve are disclosed. A crimping device can comprise a housing configured to receive a prosthetic valve in a radially expanded state. The housing member can include a funnel segment and an outlet in communication with the funnel segment. The crimping device can further comprise an actuator rotatably coupled to the housing, wherein rotation of the actuator relative to the housing causes the prosthetic valve to move axially through the funnel segment such that at least a portion of the prosthetic valve compresses radially by engagement with the funnel segment and exits the crimping device via the outlet.

Abstract: An additive manufacturing system may include a carrier, a set of rails coupled to the carrier, and a transition housing movably attached to the set of rails. The additive manufacturing system may include an extruder having an extruder barrel coupled to the transition housing, and a melt pump fixedly attached to the carrier. The melt pump may be in fluid communication with the extruder barrel. Additionally, the additive manufacturing system may include a nozzle in fluid communication with the melt pump, and a roller rotatable about the nozzle.

Abstract: A method of assembling a member and a cap of a vane using a tool which allows the application of a pressing force of the cap against the member during a step of polymerisation by heating a resin for bonding these components. To this end, the tool includes an inflatable bladder and a pocket which surrounds the bladder and the vane so that the inflated bladder applies the pressing force. The heating can be carried out by resistors which are mounted in the bladder and/or using a device for supplying external heat.

Abstract: The invention relates to a device and a method for repairing components by means of additive manufacturing. The deviation of the surface of the component from a predetermined dimensions within a repair region is determined along a specified tool path. In a subsequent filling cycle, a selective application of a filler along the specified tool path is carried out.

Abstract: A real-time monitoring system for an artificial tooth processing machine includes a work bed portion on which a base tooth material selected from a titanium material and a zirconia material is fixedly installed and in which a wet die configured to process a titanium material and a dry die configured to process a zirconia material are disposed to be comparted from each other, a processing tool portion having one end on which a driving spindle to which a processing tool is coupled is provided to process the base tooth material while approaching or moving away from the base tooth material, and a spindle monitoring portion provided on the driving spindle, disposed in the work bed portion, and configured to monitor the driving spindle to recognize an abrasion degree, a damage state, alignment, or the like of the processing tool in real time.

Abstract: Method and equipment for replacing wind turbine components, by means of a telescopic structure which is attached, in a vertical and retracted position, to the base of the wind turbine tower and which can be extended and moved upwards until it reaches the tower head, by means of collars and webbings mounted around the tower and being fixed thereto. The components to be replaced are raised and lowered by means of the telescopic structure.

Abstract: A method for manufacturing a liquid fueled rocket engine involves forming a first flange in apposition to a top end of a first tube, fixing an injector head to the first flange to form an inner shell liner assembly, shaping the inner shell liner assembly, forming a second flange in apposition to a top end of a second tube, positioning the inner shell assembly inside the second flanged tube and fixing the second flange to the injector head. Rocket engines manufactured using the method have performance superior to existing rocket engines in at least one parameter.

Abstract: An attachment assembly includes a conically tapered missile body interface surface of a missile body attachment interface wedged against a conically tapered missile component interface surface of a missile body attachment interface. The missile body attachment interface also includes an engagement rod for locked engagement by a hook of the missile component attachment interface. Specifically, the missile component attachment interface includes an auto-adjusting assembly having a series of pivoting arms connected to a rotatable engagement drive at a first end thereof and a hook at a second end thereof. The auto-adjusting assembly is moveable between a first position and a second position, and between the second position and a third position. The missile component attachment interface includes a pre-loaded over-center mechanism operably coupled to the auto-adjusting assembly and configured to lock the hook in engagement with the engagement rod in the third position.