Double D Technical Productions

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15
Videos
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Welding: Metallic Materials: Part A
This is Part A of a two part video on welding processes typically used in industry and covers the traditional to the very latest welding techniques. Production of stick electrodes Manual metal arc welding Submerged arc welding Gas tungsten arc…
Machining: Cutting Material
The processes covered by this program are: Power hack saw, cold saw, band saw Plasma arc cutting Water jet cutting Laser beam cutting Electrical discharge machining Wire cutting Ultrasonic machining
Machining: Removing Material
The processes covered by this program are: Machining basics Automatic lathes CNC lathe - 7 axis Machining centres Grinding -cylindrical & surface Machining cells FMS
Timber: Production and Processing Part A
This is Part A of two programs which include the propagation and processing of Australian native species together with American and Caribbean pines. The processes covered by this program are: Ecology Classification and structure - hardwoods & softwoods Harvesting -…
Design for Manufacture: The Case of the Pump Body
This video shows how the most appropriate materials and methods of manufacture can be selected to produce a quality product at a minimum cost. The program examines four different methods of pump body production: Hot chamber die casting Cold chamber…
Metal Casting: Sand Moulds
The processes covered by this program are: Jobbing moulding Cold box moulding Pit moulding Rapid prototyping Investment casting Medium volume green sand moulding Automated cold box moulding Hot box moulding High volume lost foam moulding Hunter process Disamatic
Timber: Production and Processing Part B
This is Part B of two programs which include the propagation and processing of Australian native species together with American and Caribbean pines. The processes covered by this program are: Characteristics of commercial softwoods Plantation management - propagation; thinning; clear…
Learn Golf - with Struan McDowall
How to achieve a repeatable quality golf swing. 2. An introduction to the rules of golf. 3. Common local rules and how they may affect your game. 4. The etiquette of golf and how to enjoy your game. 5. Simple…
Metal Casting: Die Casting
The processes covered by this program are: Gravity die casting Tilt casting Low pressure die casting Cold chamber high pressure die casting Squeeze casting
Non-Destructive Testing
This video shows how 7 different nondestructive test procedures are carried out, their advantages, limitations and typical areas of application. The processes covered by this program are: Dye penetrants (colour contrast and fluorescent) Magnetic particle (colour contrast and fluorescent) Ultrasonic…
Forming of Plastics: Part B
The processes covered by this program are: Injection moulding Injection blow moulding Production of flexible foams Rotational moulding Extrusion compression moulding Thermoforming Stadium seat
Welding: Metallic Materials: Part B
This is Part B of a two part video on welding processes typically used in industry. This program covers the following subjects: Gas metal arc welding (MIG) Determination of pre-heat Post heat treatment of welds Narrow gap welding Flux cored…
Forming of Plastics: Part A
The processes covered by this program are: Thermosetting compression moulding Thermosetting injection moulding Compounding Extrusion Extrusion of pipe Crosshead extruder Blown film Printing Extrusion blow moulding Extrusion sheet material Forming of fibres
Composite Materials: Part B
The processes covered by this program are: Resin infusion Resin transfer Compression moulding (sheet) Compression moulding (dough) Pultrusion Filament winding Continuous profile Bulk casting Centifugal casting
Composite Materials: Part A
The processes covered by this program are: Hand lay up - introductory Theory of composite materials Open mould chopped roving Huon class mine hunter Vacuum bagging Vacuum bagged pre-pregs