Monday, May 28, 2012


USE OF A SHEET METAL TO BUILD UP A MUG(PART 2)

Stakes:

A variety of stakes entirely useful but makes shift applicanears can often be made to answer a special purpose for which no. of inch is used as a support for sharp straight binding for similar works for on curved shapes there is the half moon stake.

Sheet gauge:

The work of measuring sheet is much more important in metal work. Then in work doing to grater constancy of the material & the development of increasing to a very high degree of perfection is of the almost temperature in modern industrial organization. Steel metal shop are used some machine also.
i)        Sheet bonding machine
ii)      Grillating share machine
iii)    Bond share machine

 Raw material:

i)         Galvanized sheet metal
ii)       Rivits

i)           Galvanized sheet metal:

Galvanized sheet metal consists of soft sheet metal coated with zinc, usually the steel is dipped in an acid both for clearing & then is dipped in zinc.

i)           Rivits: 

Black & timed rivits from the soft to extra large 12-16 are extremely to join the sheet in manufacturing any special job.

Soldering:

Soldering is a quick & useful process of making joints in light articles from steel, copper & brush & forewire joints such as occur in electrical work. It should not be required where much strength is required.


Fluxes:

        To assist in manufacturing necessary elements, a flux must be used to protect the clearance surface from temperature & atmospheric action. The process which is taking place of the fluxes is two kinds:
i)        This which not only protect the surface but also play an active chemical part in cleansing it.
ii)      Those which nearly protect a property by clearing surface.



 Making joint by soldering:

    A soldering joint may be made by heating & fluxieting the parts to be gained & adding the solders. By dipping the previously fluxed parts into a path of mother solder by the use of a soldering iron. For general turn of work the use of iron & copper. The metal is used :
i)        Because it is a very good conductor in conducting heat from itself to the metal of the joint.
ii)      It’s readily alloys with tin7 this facilities the apparatus of the coating the end of the iron with a large of solder known as to zinc, the iron to a good temperature. But less aired heat quickly clearing its & with a fit on energy, dipping it in the flux & other condition are right the iron well taken or their flism of solder & it is held against the struck of a soldier a certain amount in the formate globute well where to it.
The following additional hints are given in hope that they may be useful.
a)      Always use an iron as large solder can be handled & on the direction are having it too hot rather than not heat enough.
b)      A better joint can be jointed if the work is rather than cloud.
c)      Iron timing is facilitated by having some bolds of solder in a tin lid with a little spirits & touching both the spirits & the solder of the joint sometime.
d)      Quenching the hot joints in spirits hot wall often affect remarkably through clearing.



Riviting:

              Some plate is low strong to be seamed then place cannot be soldered if the articles are to with the stand heat. In such causes, joints are made by the use of rivits.
               A lap equal to their times to their rivet diameter is sufficient for a single mew hole & the counters should be close together to give a reasonable hold without making a working along the holes.
               In riveting two pieces of joint is jointed together. The required number of holes may be punched in one piece first but it is best to punch are only in the other place & to out the one in place before recording this ensure of confidence of holes throughout.





 Joining the Sheet Metal:

There are two joints, lap & bult which depend entirely on soldering lap of 3/16 inch which is allowed for must work of a small nature & the joint is strong when the solder flows right through the lap is solder bult which is only suitable for right angle joint shape.
                Most work is jointed in a stranger function by being same, it may solder as well. For the ordinary grooved, the edges are turned up & down respectively to a distance 1/8 inch are more the bunch then brooked work shape over a shape of metal are filled together & nommer   done.
                The simplest joint to the end of a complex is a circular lap. The edge of the box is thrown up 1/8 inch on a half moon set down square on a flat & standard is placed.























































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