Currently, sintering or powder metallurgy processing is applied in the production for trailer jack or landing gear parts, which is easy for forming of gear teeth but expensive on mould cost. Actually, precision forging and cold extrusion are both good methods for manufacturing of trailer landing gears. Firstly, an electrode with the same shape of the right gear is made. And then electrical discharging machine will help for make a right die cavity. This process is easy to manage and cost-saving.
CNC machining and carburizing will be applied for the following finishing of gear parts.