October 2026

1. Introduction Thermoforming is a manufacturing process in which a thermoplastic sheet is heated until it becomes soft and flexible, then formed over or into a mould using vacuum, air pressure, or mechanical force. After cooling, the plastic retains the shape of the mould and is trimmed to obtain the final product. The mould is […]

1. Introduction to Mould Cavity Design Mould cavity design is one of the most important aspects of mould engineering. It involves designing the hollow portion of a mould that gives the moulded product its external shape, dimensions, surface finish, and overall appearance. In manufacturing processes such as injection moulding and compression moulding, the mould cavity

1. Introduction to Gates in Injection Moulding A gate is a small opening or passage in an injection mould through which molten plastic flows from the runner system into the mould cavity. It controls the entry of plastic into the cavity and influences filling speed, pressure distribution, packing, cooling, and the quality of the finished

1. Introduction Heating and temperature control are essential aspects of moulding processes used in the manufacture of plastic products, rubber components, silicone products, candles, and other moulded materials. Proper heating ensures that the material reaches the required processing temperature, while temperature control maintains stable conditions throughout production. In compression moulding, injection moulding, and thermoforming, temperature

1. Introduction Surface finishing of compression moulds is an important manufacturing process that improves the quality, smoothness, accuracy, and performance of mould surfaces. It involves refining the mould’s working surfaces through operations such as grinding, polishing, lapping, and texturing to achieve the required surface condition. Compression moulds are used to shape materials by applying heat

1. Introduction A draft angle in injection mould design is a slight taper provided on the vertical surfaces of a moulded part to help it release easily from the mould after the plastic has cooled and solidified. Instead of designing the walls perfectly parallel to the direction of mould opening, a small angle is introduced

1. Introduction Cooling systems for thermoforming moulds are essential for removing heat from heated plastic sheets after they have been shaped into the required form. The cooling process allows the plastic to become rigid, maintain its shape, achieve the required dimensions, and be removed from the mould without deformation. In thermoforming, a thermoplastic sheet is

1. Introduction Aluminium compression moulds are moulding tools manufactured from aluminium or aluminium alloys and used to produce components by applying pressure to a material inside a mould cavity. They are valued for their lightweight construction, good thermal conductivity, ease of machining, and relatively low manufacturing cost. Compression moulding involves placing a measured quantity of

1. Introduction A parting line in injection moulds is the line or boundary on a moulded plastic component that is formed where two or more sections of the mould meet. It represents the separation between the mould halves or between different mould components during the injection moulding process. The parting line is an important element

Air pressure systems in thermoforming are used to shape a heated thermoplastic sheet by applying compressed air to force the softened material against a mould surface. They are an important part of many thermoforming machines because they help produce accurate, detailed, and consistent components. 1. Principle of Air Pressure Thermoforming In thermoforming, a thermoplastic sheet