A method for producing a thermal barrier coating on a component, more particularly on a turbine component and preferably on a turbine blade, wherein the component is provided with the thermal barrier coating and structures are then created in the outer surface of the thermal barrier coating using a laser ablation process so as to segment the surface of the thermal barrier coating, the structures being created in the surface of the thermal barrier coating by an ultrashort pulse laser, more particularly a femtosecond laser is provided.

The present invention presents a method of fabrication for a physiological sensor with electronic, electrochemical and chemical components. The fabrication method comprises steps for manufacturing an apparatus comprising at least one electrochemical sensor, a microcontroller, and a transceiver. The physiological sensor is operable to analyze biological fluids such as sweat.

The present embodiments providing methods, systems and apparatuses of protecting a surface during laser machining. In some embodiments, a method of protecting a surface during laser machining comprises: directing a fluid into a cavity of an object being laser machined, where the fluid does not have laser absorption properties; and directing a plurality of laser pulses at a wall of the object being laser machined, where the laser pulses are configured to form a hole through the wall such that at least one laser pulse passes through the hole and enters the cavity while the fluid is directed into the cavity such that the laser pulse is incident on the fluid and a surface together in order to inhibit backwall damage.

A system for forming a cooling hole in an airfoil includes a liquid-jet guided laser. The liquid-jet guided laser generates a laser beam confined within a fluid column. The fluid column/laser beam is directed at an outer surface of the airfoil. The system also includes a purge medium supply that is fluidly coupled to an aperture of the airfoil. The purge medium supply provides a purge medium into an inner cavity of the airfoil. The purge medium flow is oriented to flow in a flow direction that is substantially parallel to an inner surface of the cavity. A cooling hole is formed in the airfoil and extends through the outer surface and penetrates the inner surface of the cavity. A centerline of the cooling hole forms an acute angle with respect to the purge medium flow direction. The system described herein provides a method for manufacturing an airfoil.

A laser processing head (100) comprises a first-level nozzle (110) and a second-level nozzle (120) that communicate with each other, wherein the second-level nozzle (120) is arranged downstream of the first-level nozzle (110); an inner diameter of the second-level nozzle (120) gradually decreases in a laser transmission direction, and minimum inner diameter of the first-level nozzle (110) is larger than the inner diameter of a tail end of the second-level nozzle (120). The laser processing head (100) solves the contradiction between high energy density laser and the system reliability through gradual coupling. Also provided are an application of the laser processing head, a laser processing system and a laser processing method.

The present disclosure is directed toward a machine tool configured to perform small-scale, high-accuracy drilling operations for small-hole applications. The small-hole applications for which the machine tool is designed includes holes with one or more diameters. A part may have a larger-diameter hole that penetrates through a fraction of the thickness of a part and a smaller-diameter hole that penetrates from the bottom of the larger-diameter hole through the remainder of the part thickness. Additionally, the machine tool may be used with parts in any of the following categories: (i) both the step-hole and the flow-hole are created using the machine tool; or, (ii) the step-hole is created with an up-stream process and the machine tool may accept the part, measure the step-holes and create the flow-holes; or, (iii) no step-hole is used and the machine tool may accept the part, measure the raw surface and create the flow-holes.

A substrate having one or more shaped effusion cooling holes formed therein. Each shaped cooling hole has a bore angled relative to an exit surface of the combustor liner. One end of the bore is an inlet formed in an inlet surface of the combustor liner. The other end of the bore is an outlet formed in the exit surface of the combustor liner. The outlet has a shaped portion that expands in only one dimension. Also methods for making the shaped cooling holes.

A bonded structure is made of a first member and a second member which are bonded to each other. At least one bore having an opening is formed in a surface of the first member, and the second member is filled in the bore of the first member. The bore is defined by a diameter-increasing portion whose opening size increases in a depth direction from a surface side toward a bottom of the first member, and a first diameter-decreasing portion whose opening size decreases in the depth direction from the surface side toward the bottom. The diameter-increasing portion is formed on the surface side, and the first diameter-decreasing portion is formed on a bottom side.

A method for forming a plurality of precision holes in a substrate by drilling, including affixing a sacrificial cover layer to a surface of the substrate, positioning a laser beam in a predetermined location relative to the substrate and corresponding to a desired location of one of the plurality of precision holes, forming a through hole in the sacrificial cover layer by repeatedly pulsing a laser beam at the predetermined location, and pulsing the laser beam into the through hole formed in the sacrificial cover layer. A work piece having precision holes including a substrate having the precision holes formed therein, wherein a longitudinal axis of each precision hole extends in a thickness direction of the substrate, and a sacrificial cover layer detachably affixed to a surface of the substrate, such that the sacrificial cover layer reduces irregularities of the precision holes.

This disclosure provides a shield for use in a liquid guided laser system and related method of use. The shield comprises a rigid body with a target facing surface. The rigid body defines a through hole with a diameter that accommodates a liquid guided laser path. The rigid body has a thickness that defines a length of the liquid guided laser path through the rigid body. The thickness of the rigid body is at least twice the diameter of the through hole. The rigid body is positioned in the liquid guided laser path of the liquid guided laser system between a discharge nozzle of the liquid guided laser system and a target.