Abstract:
To provide a vibration conversion apparatus capable of reducing occurrence of cracks although using a longitudinal vibration converter for obtaining a torsional vibration. The vibration conversion apparatus comprises: a first longitudinal vibration converter and a longitudinal-torsional transducer having a one-wavelength torsional vibrator portion and a first flexural resonator portion. The first flexural resonator portion is interposed between the first longitudinal vibration converter and the one-wavelength torsional vibrator portion. The first flexural resonator portion is configured such that when a longitudinal vibration generated by at least the first longitudinal vibration converter is received from one end of the first flexural resonator portion, the first flexural resonator portion is bent and imparts a rotational force from the other end of the first flexural resonator portion to the one-wavelength torsional vibrator portion.
Abstract:
Ultrasonic stack contact with an object is detected upon the determination that the frequency of the ultrasonic stack has changed from the frequency of that ultrasonic stack operating near resonance in air.
Abstract:
Laser channels of a simultaneous laser welding system are controlled using profiling where there is a profile associated with each laser channel for each active weld step of the laser channel and the laser channels are controlled using the respective profiles for each active weld step of each laser channel. In an aspect, the actuator of the simultaneous laser welding system is controlled using one or more of laser light intensity amplitude profiling, force profiling, distance profiling and laser energy profiling. In an aspect, one or more conditions are used to determine when to transition from a step of a cycle of the simultaneous laser welding system. The conditions can be any of time, accumulation of laser energy, actuator position, and actuator force.
Abstract:
Laser and infrared welding systems comprising a laser welder or an infrared welder having integrated annealing are provided. Annealing may begin before, during, or after welding has begun. Several forms of annealing are provided, including annealing in an oven; annealing via heating with a source of pressurized, heated air; annealing with an infrared lamp; annealing via a heated fixture and/or tooling; and annealing via laser.
Abstract:
Tooling (200, 500, 800) for an ultrasonic tube sealer (202) includes an ultrasonic horn tip (208, 508, 808) and an anvil (210, 510, 810). The ultrasonic horn tip (208, 508, 808) and the anvil (210, 510, 810) each have at least one forming tool (218, 220; 518, 520; 818, 820). The forming tools (218, 220; 518, 520; 818, 820) have a configuration that form an end (204) of a tube (206) when it is sealed by the ultrasonic tube sealer (202) to be rounded.
Abstract:
An ultrasonic collet horn for an ultrasonic welder has a body and a collet over which a replaceable horn tip is receivable. The collet has a plurality of axial slits therein that divide the collet into sections and a tapered axially extending bore that tapers outwardly as it extends axially outwardly. The body has a threaded bore that is threadably engageable with a threaded inner section of a collet lock. The sections of the collet are forced outwardly against an inner wall of the horn tip when the horn tip is received on the collet and the collet lock tightened into the threaded bore to secure the horn tip on the collet.
Abstract:
In accordance with an aspect of the present disclosure, a vibratory welder for welding parts together has a vibratory tool made from a material having a low thermal conductivity of no greater than 5 watt/meter degree Kelvin and also having a sufficient strength and toughness for vibratory welding. In an aspect, the vibratory tool is made of a material having a compressive strength of at least 80 MPa (megapascals) tensile and a fracture toughness (K lc ) of at least 3 MPa(m) 1/2 .
Abstract:
An ultrasonic system (200) and method for cutting soft material (108) has an ultrasonic transducer (102) that vibrates axially at least one horn blade (206, 406, 506, 606) having a serrated edge (212, 412, 512, 612) so that when the horn blade is moved into the food product being cut, it is vibrating in a direction in and out of the food product to make a plunge cut.
Abstract:
Unabsorbed infrared laser light that has passed though plastic parts to be welded with a low absorption TTIr process is recirculated back to the low absorption weld interface for reabsorption in the process. A beam of infrared laser light is directed at the plastic parts to be welded, a transmissive first part and an absorptive (or partially absorptive) second part. The infrared laser light impinges the transmissive part and first transits through the transmissive part to be welded to a weld interface at the junction of the two parts. At the weld interface, either the infrared laser light is partially absorbed by an additive infrared absorber, the infrared laser light is partially absorbed by the absorptive part, or both. The portion of the infrared laser light that is not absorbed continues through the absorptive part and exits the far side. This infrared laser light is then redirected back to the weld interface. On the second pass (and any subsequent passes thereafter), more infrared laser light is absorbed in the partially absorbing medium (the additive infrared absorber, the absorptive part, or both). In an aspect, the parts are tubular parts with the transmissive part coaxially surrounding the absorptive part. The infrared laser light is redirected with a cylindrical mirror that coaxially surrounds the tubular parts. In an aspect, the parts include a tubular part and a fitting and the infrared laser is redirected with a spherical mirror that surrounds the parts.
Abstract:
A work piece processing device includes a tool device, a work piece holder and a servo-elastic actuator system having simultaneous precision force and position control that moves one of the tool device and the work piece holder to the other of the tool device and work piece holder. The servo-actuator system including a servo-actuator, a compliance elastic member and a weight compensation elastic member disposed in a force transmission path with the compliance elastic member and the weight compensation elastic member disposed with respect to each other so that a spring force exerted by the weight compensation elastic member is opposed to a spring force exerted by the compliance elastic member.