摘要:
Methods are provided for repairing a worn surface of a steel die-cast die. The method includes heating an amorphous material to a predetermined temperature with a laser beam and allowing the melted amorphous material to solidify to thereby form an amorphous layer over the worn surface. These processes are useful for eliminating or minimizing cracking and/or part distortion and minimize heat-affected zone during welding. In addition, the formation of an amorphous layer over the worn surface allows the repaired die-cast die to better withstand typical operating environments than previous repair materials. These methods combine low heat input welding with amorphous alloys to effectively repair die-cast dies.
摘要:
A hand-held laser welding wand includes internal flow passages through which filler media, gas, and coolant may flow. The wand is dimensioned to be grasped with a single hand, thus filler media of various types and forms, gas, and coolant may be supplied to the hand-held laser welding wand via external systems and delivery devices without substantially impairing operation of the wand.
摘要:
A hand-held laser-welding wand includes a gas lens assembly that develops an inert gas atmosphere around a weld pool. The lens assembly additionally reflects laser light and thermal radiation that is reflected off a work piece surface away from the hand of a user of the hand-held laser welding wand.
摘要:
A heating apparatus is provided for use during a welding operation on a component. In one embodiment, the apparatus includes a die having a cavity having at least a portion shaped to complement a first portion of the component and an opening providing a space through which a second portion of the component extends. A primary heating element is embedded in the die and generates heat upon being energized. A die temperature sensor is embedded in the die proximate the primary heating element and senses primary heating element temperature and supplies a temperature signal representative thereof. A component temperature sensor is embedded in the die, and senses a temperature of the component in the cavity and supplies a temperature signal representative thereof. A controller couples to receive the temperature signals and is operable, in response thereto, to selectively energize and de-energize the primary heating element.
摘要:
A hand-held laser welding wand includes a reflection shield that reflects laser light that is reflected off a work piece surface away from the hand of a user of the hand-held laser welding wand. The shield also reflects the thermal radiation transmitted from the work piece toward the wand during the weld process. This will help guard against a user of the wand absorbing laser light that may be reflected off the work piece, as well as significantly reduce any heat that might be transferred to the wand as a result of the reflected laser light.
摘要:
The apparatus is used in cooking foodstuff over an open flame by heat while keeping user a safe distance from fire with main elements being hand grip, shank, fork, and food transfer system. A hand grip and shank are made of materials including wood, injection mold plastics, and metal while a fork and food transfer system is constructed of food grade metal materials. The food transfer system provides a hands-free safe and sanitary method to remove cooked foods from hot metal greatly reducing likelihood of injury and food contamination.
摘要:
A hand-held laser welding wand includes a main body that is dimensioned to be grasped by a hand and a nozzle assembly. The nozzle assembly includes a laser extension tip and a feeder material extension tip in a configuration that provides the hand-held laser welding wand with the capability of conducting laser welding operations in relatively deep crevices or other hard to reach places.
摘要:
A hand-held laser welding wand includes internal flow passages through which filler media, gas, and coolant may flow. The wand is dimensioned to be grasped with a single hand, and includes an optics assembly disposed therein. The wand is configured such that the optics assembly, or portions thereof, may be readily serviced without having to breach coolant seals or remove a plurality of threaded screws.
摘要:
The apparatus is used in cooking foodstuff over an open flame by heat while keeping user a safe distance from fire with main elements being hand grip, shank, fork, and food transfer system. A hand grip and shank are made of materials including wood, injection mold plastics, and metal while a fork and food transfer system is constructed of metal materials. The food transfer system provides a hands-free safe and sanitary method to remove cooked foods from hot metal greatly reducing likelihood of injury and food contamination.
摘要:
A method for applying a braze material to a component surface comprises the steps of first directing a liquid spray including a binder toward the component surface, and then injecting a powder including a metallic braze material into the spray, and thereby coating the component surface with a substantially homogenous mixture of the binder and the powder.