Overview
The KAIRDA C Impact device is an accessory of the Leeb hardness tester, designed for Hardness detection of small, thin parts and surface hardened layers. The device has a small impact force, minimal damage to the tested surface, and will not damage the hardened layer. It is suitable for applications requiring High Accuracy nondestructive testing.
Features
1. Impact energy is low, only 2.7mJ, reducing damage to the surface of the workpiece
2. The ball head is made of tungsten carbide material, with Hardness up to 1600HV to ensure durability
3. Compact design, diameter 20mm, length 141mm, weight 75g, easy to operate
4. Suitable for small and thin parts, the minimum test thickness is only 1mm
5. Do not damage the hardened layer, the minimum depth of the hardened layer is required to be ≥ 0.2mm
6. Maximum measurable Hardness up to 1000HV, covering a wide range of materials
Principle
Impact energy of 2.7 mJ is released by the C-type Impact device, which makes the tungsten carbide ball head Impact the surface of the specimen, and the diameter and depth of the measurement are used to calculate the Hardness value. Impact force is small, ensuring minimal surface damage, especially suitable for nondestructive testing of fine parts and hardened layers.
Applications
Small and thin parts, surface hardening, fine workpieces, High Accuracy Hardness testing
Steps
1. Select C Impact unit and install to Leeb hardness tester
2. Ensure that the surface roughness of the specimen does not exceed 0.4μm
3. Support or coupling according to the weight of the specimen: > 1.5kg needs stable support, 0.5~ 1.5kg needs stable support, 0.02~ 0.5kg needs dense coupling
4. Impact testing on the specimen surface
5. Record Crowd data and calculate Hardness value
Notice
• The minimum weight of the specimen must be greater than 1.5kg, otherwise additional support or coupling is required
• The average surface asperity of the specimen should not exceed 0.4μm
• Test thickness of at least 1mm, hardened layer depth should be ≥ 0.2mm
• Lightweight widgets need to be tightly coupled to prevent movement
• Avoid using on ultra-hard or ultra-thin materials to prevent inaccurate data
