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The picture of a blacksmith most people have in their mindsis that of a big well muscled man standing in a shop with a raging furnace in acorner and using a huge hammer to shape a piece of red hot metal. Theprinciples of blacksmithing have not changed with the passing of time and thebasic concepts of the trade remain the same. Except now the blacksmith does nothave to be a huge overly muscled man with the ability to apply massive force tothe hammer blow. By the end of the 19th century power hammer becameavailable that allowed metal to be worked into shape without the application ofhuman muscle. The first hammers that did not use direct muscles power tostrike the metal were trip hammers. These were lifted to the top of their framewater power (and later by steam) and once they were at the top of the frame,were released and fell with their own weight to make the strike. Basically, itused gravity to create the force of the blow. Power hammers are a developmentof the trip hammer. In the case of the blacksmiths power hammer, energy isstored in the form of compressed air or steam and using a system of mechanicallinkages this energy is added to the force of gravity and increases the forceof the hammer blow. Power hammers are categorized according to the forceapplied at the time of the hammer hitting the metal and large industrialhammers exceed 100 tones in force. The first power hammers were steam powered and continued tobe in use till the middle of the 20th century. However, by thebeginning of that century, smaller mechanical power hammers became popular withblacksmiths. These hammers were powered by electric motors that powered the ramthat drove the hammer. These were easier to use and since no boilers wererequired to create the steam pressure they occupied much less space and werealso safer. The motor driven hammerswere also easier to control and set for the desired force behind the hammerblow. Modern blacksmiths power hammers are extremely precisemachines, often with micro chip based controls and moveable beds that allow forthe easy placement and adjustment of the metal to be worked on. Since the forceof the hammer blows are variable, they can be used not just for the grossshaping of the metal in the initial stages, but also for the finer shaping andfinishing required to complete the piece being manufactured. The modern blacksmith metal artist uses power hammers thatrange between 25 to 500 pounds of strike force, although larger one are usedfor very large projects. The blacksmith of yore used his muscles combined with hisskill to produce metal objects of high quality that were often works of art.The power hammer removes the need for physical strength and allows those ofslight build to shape metal and become blacksmiths and, in increasing numbers,metal artists.
Blacksmith,Power,Hammer,The,pi