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Turning-Milling Compound Processing

Compound processing is one of the most popular machining techniques internationally in the field of mechanical processing.It is the realization of several different machining processes on one machine tool.Turning-milling compound processing is the most widely used and presents the greatest challenges. A turning-milling compound processing center essentially combines a CNC lathe and a machining center.

Definition

Turning-milling compound processing is an advanced manufacturing technology that combines turning and milling processes. This technique is typically performed on CNC machine tools and can improve machining efficiency and the precision of parts, making it especially suitable for complex-shaped workpieces.

Processing Principle

Turning: Material is removed through the rotation of the workpiece and the cutting action of a stationary tool.

Milling: Material is cut from the workpiece surface using a rotating tool.

By integrating these two methods, complex profiles can be machined, such as bevels, grooves, and holes.

Application Fields

Turning-milling compound processing is widely used in industries such as aerospace, automotive manufacturing, and mechanical processing, suitable for machining various complex shapes and high-precision parts.

Advantages

Compared to conventional CNC machining techniques, compound processing has several notable advantages:

(1) Shortened Product Manufacturing Process Chain, Improving Production Efficiency: Turning-milling compound processing can complete all or most machining operations in one setup, significantly shortening the product manufacturing process chain. This reduces production auxiliary time caused by changes in setup and minimizes the lead time for fixtures and tools, thereby significantly improving production efficiency.

(2) Reduced Clamping Times, Increasing Processing Precision: Fewer clamping operations prevent error accumulation due to the transformation of positioning references. Additionally, most turning-milling compound processing equipment features online detection capabilities, enabling real-time monitoring of key data during the manufacturing process and precision control, thus improving machining accuracy.

(3) Reduced Footprint, Lower Production Costs: Although the initial price of turning-milling compound processing equipment is relatively high, the shortening of the manufacturing process chain and the reduction in the number of required devices, along with fewer tooling and fixtures, decreases workshop space requirements and equipment maintenance costs. This effectively lowers overall fixed asset investments, production operation expenses, and management costs.

Processing Steps

Workpiece Clamping: Secure the workpiece on the CNC fixture.

Program Preparation: Write the CNC program based on the machining requirements of the part.

Tool Selection: Choose the appropriate tools based on material characteristics and shapes.

Turning Operation: Start with turning to form the basic shape.

Milling Operation: Proceed with milling to complete complex profiles and details.

Inspection: Measure the machined parts using measurement tools for quality inspection.

Points to Note

Tool selection and cutting parameters should be reasonably set based on material characteristics.

The machine's status should be continuously monitored during processing to avoid malfunctions or incorrect machining.

Safety precautions are paramount; operators must wear appropriate protective gear.