What Are the Common Tolerances for Ground Carbide Rods

Ground carbide rods are widely used in various industries due to their exceptional hardness, high thermal conductivity, and excellent wear resistance. These rods are often used in cutting tools, such as lathe tools, milling cutters, and drilling tools. To ensure the proper functioning and compatibility of these rods, specific tolerances are maintained during their manufacturing process.

Here are some of the common tolerances for Ground Carbide Rods:

Length Tolerance:

Carbide rods come in various lengths, and the length tolerance is crucial for precise fitting in cutting tools. Typically, the length tolerance ranges from ±0.005 to ±0.015 inches, depending on the rod's diameter and length.

Diameter Tolerance:

The diameter tolerance for Ground Carbide Rods is essential for maintaining a proper fit in the tool holder and workpiece. The diameter tolerance usually ranges from ±0.0005 to ±0.002 inches, depending on the specific application and diameter of the rod.

Roundness Tolerance:

Roundness tolerance ensures that the carbide rod is perfectly round, which is crucial for accurate cutting. The roundness tolerance typically ranges from ±0.0002 to ±0.0005 inches.

Straightness Tolerance:

For optimal cutting performance, the carbide rod must be straight. The straightness tolerance generally ranges from ±0.0005 to ±0.002 inches, depending on the rod's length.

Surface Roughness:

The surface roughness of a ground carbide rod affects the cutting performance and tool life. A typical surface roughness range is Ra 0.8 to Ra 1.6 microinches.

Material Hardness:

The hardness of the carbide material is crucial for its wear resistance and cutting ability. The hardness of Ground Carbide Rods typically ranges from 90 to 95 Rockwell C (HRC).

Thermal Conductivity:

High thermal conductivity is an essential property of carbide rods, as it helps dissipate heat during cutting operations. The thermal conductivity of Ground Carbide Rods is usually around 150-200 W/m·K.

By maintaining these common tolerances, manufacturers ensure that the Ground Carbide Rods meet the required specifications for their intended applications. This, in turn, contributes to the overall performance, longevity, and efficiency of cutting tools.