Guillotines

Guillotines are used in the production of shearing, this is otherwise known as die cutting. This cutting machine ensures that the metalworking process cuts stock metals and keeps the formation of chips away, it also means that burning or melting is not required. In order to not overcomplicate the lingo, if the cutting blades themselves are straight, the process will be referred to as shearing. Some of the operations include trimming, roll slitting, blanking and piercing. When the cutting blades are curved instead of straight, then they are best for shearing-orientated operations. The guillotine machine is chiefly used to shear materials that are in the mould of plates or sheet metal. This does not exclude rods from the process.

Therefore, in principle this is the working mechanic of our steel merchant process, with the guillotine in mind. The punch or the moving blade will be used to force the workpiece towards the die or fixed blade. In most cases, the clearance between these two objects is say five to ten percent in relation to the inherent thickness of the material. This is of course dependant on the material itself. The separation between two blades is how clearance is defined, and of course measured at the point where the cutting action itself will take place, directly opposite to the movement of the blade. This will affect the finish of the burr or cut, as well as the machines overall power consumption.

This action will cause the material itself to go through a localised sheer stress that occurs between the die and the punch. The material can fail if the punch moves from anywhere between 15 to 50 percent of the overall thickness of the material. This is due to the fact that the shear stress is far greater than the shear strength; this causes the remaining material to tear. Two unique sections are then seen as a wholly sheared workpiece. The first section is a plastic deformation, with the second section becoming a fractured piece. The shearing action itself does not occur in a uniform manner. Contact Steelrode today for further information relating to our steel production methods.