Commonwealth Scientific and Industrial Research Organisation

James Cook University

Kinetic Elements Pty Ltd.

Peter Christopher King

Stefan Gulizia

Mahnaz Zehtab Jahedi

Andrew Joseph Urban

John Edward Barnes

Rocky De Nys

Andrew James Poole

Justin Patrick Holland

Alejandro Vargas Uscategui

Yu He Shi

Alexander Carl Engel

A method of determining a tool path for controlling a printing tool, including step () of receiving an input file containing data indicative of a three-dimensional structure to be formed. At step () the structure is divided into a plurality of build layers, which are separated in a build direction and each layer extends laterally relative to the build direction. Each layer includes an external contour defining the intersection of the layer with an exterior surface of the three-dimensional structure. Step () defines a tool path, which fills the three-dimensional structure, wherein the path includes partially filling one or more higher build layers along the build direction before entirely filling at least one lower build layer. At step (), a printing tool control algorithm is generated that includes a series of control commands for controlling the printing tool to move along the tool path to form the three-dimensional structure.

Method of determining a tool path for controlling a printing tool

A process for producing a preform by cold spray deposition, the process comprising: providing a starter substrate about a preform axis of rotation, the starter substrate having at least one axial end having a substantially flat deposition surface; rotating the starter substrate about the preform axis of rotation; depositing material onto the deposition surface of the starter substrate using cold spray deposition to form a product deposition surface, the cold spray deposition process including a cold spray applicator through which the material is sprayed onto the deposition surface; successively depositing material onto a respective top product deposition surface using cold spray deposition to form successive deposition layers of the material; and moving at least one of: the cold spray applicator; or the starter substrate and preform product, relative to the other in an axial direction along the preform axis of rotation to maintain a constant distance between the cold spray applicator and the top product deposition surface, thereby forming a preform product of a selected length, wherein the cold spray applicator is moved in a plane perpendicular to the preform axis of rotation so as to deposit material as a substantially flat surface on each respective deposition surface of the starter substrate or product deposition surface of the preform product.

Process for producing a preform using cold spray

A process for producing a fluid transfer surface, which process comprises: providing a titanium or titanium alloy surface; subjecting the titanium or titanium alloy surface to surface hardening by interstitial element absorption to provide a hardened surface; and, if required engraving the hardened surface to provide a desired surface topography.

Process for producing a printing surface

A method of protecting a polymer surface against fouling, which method comprises embedding in the polymer surface particles having antifouling properties, wherein the particles are embedded in the polymer surface by a spray mechanism in which the particles are accelerated and sprayed onto the polymer surface with a suitable velocity such that the particles become embedded in the polymer surface, wherein the particles are embedded in the polymer surface without an adhesive or binder and wherein the particles do not form a continuous layer on the polymer surface.

Surface treatment

Growing community of inventors

Ashwood, Australia

Peter Christopher King