There are various common methods of joining parts together used in Engineering works. Soft soldering, hard soldering and brazing soft soldering is one of the techniques of the joining method, but thinner parts. Soft soldering is a method of attaching two or more pieces of comparable or dissimilar thinner parts using a solder alloy with a lower melting temperature than the base metals. Soft Soldering requires a temperature of around 300°C to 350°C. We define mechanical engineering as the study of designing, analyzing, manufacturing, and maintaining mechanical systems using engineering, physics, engineering mathematics, and materials science principles. Since ancient times, it has been one of the oldest and widest engineering fields. Mechanical engineering, in its most basic form, is the application of engineering ideas and problem-solving approaches to any product, from design to manufacturing to the marketplace. The principles of motion, energy, and force are used by mechanical engineers to analyze their work.