(Podcast) Production Technology

Episode 5 introduces several casting processes commonly used in production, such as sand casting, plaster-mould casting, expandable pattern casting, investment casting and centrifugal casting. Some aspects of casting design are discussed as well.

Episode 6 describes three main forming processes, namely, rolling, forging and extrusion. Due to the extensive use of sheet metal in product design, a subsection on sheet metal forming is included. A brief discussion on forming products from powders i.e. powder metallurgy, is included towards the end of this topic.

Episode 2 discusses the selection of materials, classification of materials, properties of common engineering materials, and mechanical behaviour and testing of materials. A section on polymers, ceramics and composites is included because many products are increasingly being made from such materials.

Episode 3 describes the mechanics of chip formation during cutting, types of chips produced and the mechanics of oblique cutting. The forces involved in cutting processes, temperatures during cutting and cutting tool materials are described in sufficient detail.

Episode 1 introduces learners to production technology in general. A brief history of production is given followed by discussion on the role of production in the economy of a country and production as a technological activity. This is followed by a discussion on the design process and a description of general manufacturing processes.

Episode 4 discusses various metal joining processes, such as welding, brazing, soldering and adhesive bonding. Various types of fusion welding processes are described. This is followed by description of solid state welding and other metal joining processes.