Category: ‘Processing’
Selection of a welding process is determined primarily by the characteristics of the joint, the materials involved, their shape and thickness, and joint design. Additionally, production requirements, such as rate and quality, mus... Read More...
Paint is a liquid which dries to form a surface. It is used in Engineering for protection, decoration and identification of surfaces.
Paint consists mainly of:
Pigments, which provide opacity and colour and ca... Read More...
The pressing and deep drawing operations are based on shaping sheet metal by plastic deformation. The deformation is achieved by forcing the sheet metal into a formed female die using a male shaped punch. For the pressing oper... Read More...
The fabrication of metal shapes from small particles of metal by sintering is an old technology of over 1000 years. The sintering of metal and ceramics on a large scale is however a much more recent development. Sintering ... Read More...
Wire Drawing
The process of wire drawing involves the production of wire of close diameter and tolerance by drawing descaled hot-rolled rod through a die. The finished wire is coiled onto a motor driven block. The dies are man... Read More...
The process of extrusion is simply forcing a billet of metal through a shaped die to produce a continuous length of constant section similar to the die profile. Lead was the first metal to be extruded as pipe in the early 1... Read More...
Process
Economic Quantity
Materials
Size Range
Minimimum
thickness
Sand Casting
Small/Large
Most Metals
Small to Large
3mm
Die Casting
Gravity
Large
Al,Cu,Mg,Zn
1-60 kg
3mm
Die Casting
Large
... Read More...
High Carbon Steel
This material is one of the earliest cutting materials used in machining. It is however now virtually superseded by other materials used in engineering because it starts to temper at about 220oC . This s... Read More...