Machining and Installation Sequence and Process

Points to note in the installation and detailed machining sequence:

1. When arranging the sequence of machining operations, it is essential to adhere to the fundamental principles of “machining surfaces before holes” and “roughing before finishing.”

2. Once the tool entry point and tool change point have been determined, they should not be altered.

3. For hole patterns with stringent coaxiality requirements, all holes in that pattern should be machined in a single setup before proceeding to machine holes at other coordinate locations. This approach eliminates errors introduced by repeated setups and improves the overall coaxiality of the hole pattern.

4. By organizing machining operations according to tool‑centric processes, repeated use of the same cutting tool can be effectively avoided, thereby reducing the frequency and time required for tool changes.

High‑precision components are used in testing equipment and instruments across various industries; in China, they are primarily employed in the instrumentation and metering sectors.

Compared with general mechanical manufacturing, mechanical manufacturing features higher product technological content—both in design and production—advanced machining equipment, greater value added, and sales that are typically characterized by small‑batch, differentiated offerings.

Stainless steel materials used in the machining of mechanical parts:

1. The material should have an appropriate level of hardness—at least one grade softer than the mating component—and its selection must also take into account the function of the part being machined, ensuring proper material choice for the application.

2. Requirements for material hardness: In certain applications, higher material hardness is preferable; however, this is limited by the hardness requirements of the machined parts. The material being processed must not be excessively hard—materials harder than the workpiece itself cannot be machined.