Wrenches and spanners are typically made using which forging technique?

Wrenches and spanners are typically made using drop forging because this technique provides several advantages that align with the requirements for these tools. Drop forging involves shaping metal by dropping a heavy hammer onto it while the metal is heated and positioned in a die. This method creates a strong and durable component by refining the grain structure of the metal and enhancing its mechanical properties, leading to tools that can withstand high levels of stress and torque.

Additionally, drop forging allows for the mass production of consistent and high-quality parts, which is essential in manufacturing wrenches and spanners. The process not only boosts strength but also allows for precise dimensions, ensuring that the tools fit properly and perform effectively.

The other methods, such as die casting, casting, and milling, do not provide the same level of mechanical integrity or strength for tools that require durability under heavy loads and repeated use. Die casting and general casting are used for creating complex shapes but may not yield the same strength characteristics as drop forging, while milling is a machining process that is typically used for finishing operations rather than initial shaping for tools like wrenches and spanners.