Many original ideas start out as hand-drawn sketches. To bring these ideas to fruition, these ideas need to be converted into a process that can be followed to eventually manufacture the final product. The first step in this process is to use a CAD program to convert the original sketches into CNC drawings. During the generation of these drawings, a thorough understanding of the machining processes that will be used to machine the item is essential. Once drawings are complete, machining can begin.

Precision machining is a subtraction process that encompasses a wide range of machining operations including milling, turning, drilling, grinding, and other processes to remove material from a workpiece to form an item with the final shape and design desired. Following the program instructions given by the CAD or CAM (Computer Aided Manufacturing) design, machining tools will machine the item.

Various heat treatments and may also be applied during the machining process. There will be multiple steps during the machining operation involving various movements. For larger, single directional cutting movements, the piece can be fed into a stationary machining tool. For finer more intricate procedures, machining tools that take advantage of multiple axis which can perform finer machining operations.

At Heng Chang Precision Machining we take into consideration the entire Precision Machining process, from initial sketches to final production, to determine the most efficient and cost-effective method of production.