People in China have been wearing rings about 4,000 years ago. By the Qin and Han Dynasties, it was very common for women to wear rings. During the Eastern Han Dynasty, rings were already used as tokens of love among the people. Young men and women often expressed their love by giving rings. After thousands of years of trials and tribulations, rings are now generally accepted by people and play a big role in modern life, either as decoration or as a token of marriage.
To make a metal ring by hand, its best to start with a metal with a lower melting point...like the copper-zinc alloy used in one-cent coins. The melting point of zinc is 420 degrees Celsius, which is much lower than copper (1084) and iron (1535). In addition, it is widely available and easy to obtain (for the people of American imperialism), so it is right to use it for surgery.
WARNING: Melting zinc produces zinc dioxide dust which can cause flu-like symptoms so be sure to wear a mask and ensure good ventilation.
First you need some coins.
Use an oxyacetylene flame or any high-temperature flame to melt it. Those layers of paper-like things are unmelted copper, and the silver-white metal on the spoon is zinc.
Pour the zinc into the mold, cool it and cast it into a cylindrical shape.
Perform some processing on the shape, and drill in the middle to lay the foundation for subsequent work.
The next step is to enlarge the ring blank to match the size of your finger.
Correct the shape.
Polish
Complete! The shiny silver metal ring DIY is completed...
