Provided is an abrasive material having a grinding force more appropriate to the purpose of surface finishing. The abrasive material is intended to be used for surface finishing by spraying onto a workpiece, and comprises a plurality of abrasive material particles each comprising a core, a binder, and an abrasive grain layer formed on a surface of the core via the binder, wherein the binder is a mixture of a non-curable adhesive used as a main ingredient to provide tackiness and another agent used to adjust hardness according to a desired surface roughness of the workpiece. The hardness of the binder is adjusted to be higher or lower than that of the non-curable adhesive itself as a main ingredient. The binder may have the property of a cured material or the property of a fluid.

Provided is an abrasive material having a grinding force more appropriate to the purpose of surface finishing. The abrasive material is intended to be used for surface finishing by spraying onto a workpiece, and comprises a plurality of abrasive material particles each comprising a core, a binder, and an abrasive grain layer formed on a surface of the core via the binder, wherein the binder is a mixture of a non-curable adhesive used as a main ingredient to provide tackiness and another agent used to adjust hardness according to a desired surface roughness of the workpiece. The hardness of the binder is adjusted to be higher or lower than that of the non-curable adhesive itself as a main ingredient. The binder may have the property of a cured material or the property of a fluid.

A panel including a surface made of a synthetic material may be subjected to a material removal process to create a specific decorative or architectural appearance. In one embodiment, a panel of cellular PVC is blasted with an abrasive material such as crushed glass to create a realistic stucco appearance on the panel surface. Benefits related to using certain synthetic materials as cladding may be realized, such as weather resistance. A coating containing aggregate may be applied to the blasted panel to enhance the surface appearance.

A panel including a surface made of a synthetic material may be subjected to a material removal process to create a specific decorative or architectural appearance. In one embodiment, a panel of cellular PVC is blasted with an abrasive material such as crushed glass to create a realistic stucco appearance on the panel surface. Benefits related to using certain synthetic materials as cladding may be realized, such as weather resistance. A coating containing aggregate may be applied to the blasted panel to enhance the surface appearance.

A method for manufacturing a compressor scroll that appropriately impinges cavitation bubbles on target regions of a scroll. The method includes the step of water jet peening by jetting cavitation bubbles generated underwater by a water jet at a first side of an end plate (13A) of the scroll (13), with a center (P1, P2, P3) of the cavitation bubbles being offset from a center (O) of the spiral shape of a wall portion (13B) on the end plate (13A) and the step portion (13Aa) and the stepped portion (13Ba) positioned at an outer peripheral portion of the cavitation bubbles (C).

The invention relates to a method for the surface processing of a component by flow grinding, comprising the following steps: (a) providing a blank (1), (b) flooding at least one surface of the blank (1) with a fluid carrier material containing grinding particles,
wherein the blank (1) is rounded at positions at which, during flooding, the flow direction (25) of the fluid carrier material containing the grinding particles changes and, at positions at which a flow separation occurs on the finished component, additional material (5) is attached such that a flow separation at the beginning of the flooding operation is prevented.

The invention relates to a method for the surface processing of a component by flow grinding, comprising the following steps: (a) providing a blank (1), (b) flooding at least one surface of the blank (1) with a fluid carrier material containing grinding particles,
wherein the blank (1) is rounded at positions at which, during flooding, the flow direction (25) of the fluid carrier material containing the grinding particles changes and, at positions at which a flow separation occurs on the finished component, additional material (5) is attached such that a flow separation at the beginning of the flooding operation is prevented.

Blasting abrasives comprise a plurality of particles. Blasting abrasives are classified into two basic types with many varieties of particles within these categories. Sharp, angular, and blocky abrasives and bead and/or rounded abrasives. Blasting abrasives are describe that are made from mixing particles of sharp, angular or blocky abrasives with bead or round abrasives. The blasting performance of any sharp, angular, or blocky abrasive may be improved by combining it with the bead or round abrasives in concentrations from 0.1 wt. % to 50 wt. %.

The present disclosure is directed to a system and method for in-situ (e.g. on-wing) cleaning of gas turbine engine components. The method includes injecting a dry cleaning medium into the gas turbine engine at one or more locations. The dry cleaning medium includes a plurality of abrasive microparticles. Thus, the method also includes circulating the dry cleaning medium through at least a portion of the gas turbine engine such that the abrasive microparticles abrade a surface of the one or more components so as to clean the surface.

The present disclosure is directed to a system and method for in-situ (e.g. on-wing) cleaning of gas turbine engine components. The method includes injecting a dry cleaning medium into the gas turbine engine at one or more locations. The dry cleaning medium includes a plurality of abrasive microparticles. Thus, the method also includes circulating the dry cleaning medium through at least a portion of the gas turbine engine such that the abrasive microparticles abrade a surface of the one or more components so as to clean the surface.