IN2014CH06702AIN6702CH2014AIN2014CH06702AIN 2014CH06702 AIN2014CH06702 AIN 2014CH06702AIN 6702CH2014 AIN6702CH2014 AIN 6702CH2014AIN 2014CH06702 AIN2014CH06702 AIN 2014CH06702A
Authority
IN
India
Prior art keywords
container
thin walled
concaving
slugs
dished
Prior art date
Application number
Inventor
Srinivasa Reddy Morthala
Malla Reddy Morthala
Original Assignee
Srinivasa Reddy Morthala
Malla Reddy Morthala
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
The present invention discloses an improved method to prepare a thin walled, integral bottom and cylindrical body copper container in a single impact extrusion operation or a cold forging operation, followed by drawing the body to desired length and concaving the bottom, and then necking the upper portion in a series of steps which gradually reduce the diameter of the open end of the body while simultaneously thickening the neck walls without wrinkling the smooth contour of the container is disclosed. The invention is to produce, by a commercially economical method, seamless very thin walled container capable of resisting pressures for their intended purposes, from slugs which contain a volume of metal utilized in other dished containers.