Model representation of indexable external turning tool

The ISO standard and the Chinese standard stipulate the meaning of the external turning tool model. The specific contents of the ten positions are now explained.

PWLNR2525M08

The first letter indicates the way the blade is clamped

C represents the clamping force from the top to the bottom of the blade, the typical structure is the upper pressure type

D represents the clamping force is performed by a single element while clamping the blade from the inside to the side of the blade hole and from the top to the bottom. The typical structure is a hook-and-pin type.

M represents the clamping force from top to bottom, and the blade is force-clamped from the inside to the side of the blade hole. The typical structure is screw-up type, wedge-hook type.

P represents the clamping force. The blade is clamped inwardly from the blade hole. Typical structures are lever type, eccentric type, wedge pin type, pin type, pad type, side push type, etc.

S represents the clamping force from the obliquely upward and downward direction of the hole, clamping the blade in the lateral direction. The typical structure is a perforated type.

The second letter W, indicating the shape of the indexable insert

The third letter L indicates the lead angle of the indexable external turning tool

The fourth letter N indicates the relief angle of the indexable insert

The fifth letter R indicates the cutting direction of the indexable external turning tool

Sixth and seven digits indicating the height of the tip of the indexable external turning tool

The height of the tool tip to the base surface of the tool bar is high. The normal accuracy level is js14. Usually the height of the tool bar is equal to the height of the tool tip, and the normal accuracy level is h13. When the height of the toolholder is not equal to the height of the tool tip, it must be specified in words. When this value is a single digit, the code letter is preceded by 0, such as 8mm with 08.

When the eighth and ninth digits are numbers, the width of the arbor that can be indexed by the external turning tool

The normal accuracy level is h13. When this value is a single digit, the code letter is preceded by 0.

The length of the tenth indexable external turning tool

The eleventh and twelve digits indicate the indexable insert size

Concerned about surprises

Label: turning tool, outer circle, clamping force, chip cutting, high speed cutting

Previous: Instructions for use of ceramic tools Next: Determination of the reference point for the measurement of the indexable turning tool