reddishpink
NI Azman
Hello there,
I need some help. I'm writing a project report on production cost analysis on copper tube manufacturing. The process to form a small diameter tube frombig tube (say 30 mm) is called drawing. At the moment, the drawing process at the comapny I am writing my thesis at is done only until 4mm. We have really big machine to do this.
This company plans to offer even smaller tube , around 1mm to 3mm to thecustomer. Possible new machine is needed, because the machine we have now is too big for drawing 1 - 3mm tube.
Because the deformation of copper tube should not exceed more than 30%, the drawing process have to be done in multiple rounds. For example to get from 30mm to 4.75 mm with 300 kg tube, i need 7 drawing rounds to do that. After each round, the diameter will be smalller hence the length willbe longer. This means more time needed to draw thetube in thenext round = more machine cost after each round. hence the personal cost will also increase (the machine handler). To manufacture even smaller machine at this one tube will need longer time and will cause backlogs to other orders, because they have to wait until the small tubes is drawn.
Another machine is needed to do this, which is more suitable to draw small tubes from 1mm to 7mm... I need to do calculation, what is the most economical way to produce small tubes. Means, i need to decide, until what diameter should the drawing process be done at the current machine, and then move it to the new machine. Should the drawing at the current machine stop at 7mm, 6mm or 5mm or etc, ?this will be determined through cost calculation. Can someone help me with this. Any idea ?
Thankss
I need some help. I'm writing a project report on production cost analysis on copper tube manufacturing. The process to form a small diameter tube frombig tube (say 30 mm) is called drawing. At the moment, the drawing process at the comapny I am writing my thesis at is done only until 4mm. We have really big machine to do this.
This company plans to offer even smaller tube , around 1mm to 3mm to thecustomer. Possible new machine is needed, because the machine we have now is too big for drawing 1 - 3mm tube.
Because the deformation of copper tube should not exceed more than 30%, the drawing process have to be done in multiple rounds. For example to get from 30mm to 4.75 mm with 300 kg tube, i need 7 drawing rounds to do that. After each round, the diameter will be smalller hence the length willbe longer. This means more time needed to draw thetube in thenext round = more machine cost after each round. hence the personal cost will also increase (the machine handler). To manufacture even smaller machine at this one tube will need longer time and will cause backlogs to other orders, because they have to wait until the small tubes is drawn.
Another machine is needed to do this, which is more suitable to draw small tubes from 1mm to 7mm... I need to do calculation, what is the most economical way to produce small tubes. Means, i need to decide, until what diameter should the drawing process be done at the current machine, and then move it to the new machine. Should the drawing at the current machine stop at 7mm, 6mm or 5mm or etc, ?this will be determined through cost calculation. Can someone help me with this. Any idea ?
Thankss