Ironing is a sheet metal working or sheet metal forming process.
Canning process sheet metal.
Sterilizing the canned products.
The canning process itself consists of several stages.
Sheet metal forming process is done on a press and the parts are formed in between two die.
Filling the containers usually under a vacuum.
It often can be seen in the walls of deep drawn square or rectangular shells see figure 1a and figure 1b caused by the imbalance of metal flow into the drawing cavity see figure 2.
Oil canning has long been observed to be an inherent condition in all sheet steel due to mill camber and leveling tolerances.
It uniformly thins the workpiece in a specific area.
Sheet metal is formed cold.
The following guide explains a few common processes that might occur during metal stamping.
Unstrained or loose metal in a stamping can result in an oil canning effect.
In its raw state the aluminum sheet metal is too thick for beverage cans so it s ironed to achieve a thinner more uniform composition.
This is a very useful process.
It is used in making aluminium beverage cans.
Cleaning and further preparing the raw food material.
Most aluminum cans for instance are made of ironed aluminum.
The top end is then seamed in place after the can has been filled.
Common sheet metal stamping process.
The reference chart below shows style of pack jar size head space process time dial gauge and weighted gauge for pressure canning or boiling acid foods.
The bottom end is then attached with a process called double seaming to create a hermetic seal.
Closing and sealing the containers.
Pressure canning or boiling water bathing acid foods.
The die at the top is called a punch.
This is a commonly used manufacturing process that helps in manufacturing the parts for tons of known and unknown purposes.
Oil canning is an inherent characteristic of light gauge cold formed metal products particularly products with broad flat areas.
Boiling and pressure canning time have the most notable variable to pay attention to.
It is used to produce a uniform wall thickness part with a high height to diameter ratio.
There are basically only three components to sheet metal stamping the sheet metal die and press machine but any single part can require multiple steps to arrive at its final form.
It is a visual phenomenon seen as waviness or distortion in the flat surfaces of metal roofing and siding products.
A rectangular flat sheet of food grade steel is shaped into a cylinder and closed with a vertical side seam.
Sheet metal may also be ironed to achieve a uniform thickness.
Here are a few key takeaways.