Knoop/Vickers Hardness Testers
Microhardness testing, commonly referred to as Knoop and/or Micro-Vickers testing, is performed by pressing an indentor of a specified geometry into the test surface. Applying only a single test force, the resultant impression or unrecovered area is measured. The Knoop diamond produces an elongated rhombic based diamond shaped indent with a ratio between long and short diagonals of about 7:1. Knoop tests are typically performed at test forces from 10 – 1000g, are best used in small test areas or on brittle materials as minimal material deformation occurs on the short diagonal area.
Macrohardness testing, also commonly referred to as Vickers testing, is also performed by pressing an indenter of specified geometry into the test surface. Again applying only a single test force, the resultant impression or unrecovered area is then measured. The Vickers diamond produces a square based pyramidal shape with a depth of indentation of about 1/7th of the diagonal length. The Vickers test has two distinct force ranges, micro (10 – 1000g) and macro (1 – 100kg), to cover all testing requirements. The indenter is the same for both ranges, therefore Vickers hardness values are continuous over the total range of hardness for metals (typically HV100 – HV1000).
Applications:
- Ferrous, steel & non ferrous metals
- IC wafers
- Thin plastics
- Metal foils & laminates
- Platings
- Coatings
- Surface layers
- Heat treatment effects
- Case depth
- Carburized layer depth
- Ceramics
- Carbides
- Hardness from welding to deposition
Wilson® VH3300 Automatic Hardness Tester
This Wilson fully automated hardness testing system provides a fully integrated platform for your complete Vickers and Knoop hardness testing needs. From leading edge modular frame, stage, and optics designs to a fully featured User Interface, our VH3300 automatic hardness tester can be built to meet your application needs today, tomorrow, and into the future.
Wilson® VH3100 Vickers & Knoop Hardness Testers
The VH3100 Vickers and Knoop hardness test system features a 3-position virtual turret with one Vickers indenter and two measurement objectives, an automated X/Y sample stage (110 mm x 140 mm travel range), a bright field overview camera for sample navigation and scanning and a powerful image analysis. A purpose-designed collision protection system helps to avoid accidental damage to the indenters and objectives due to operator errors. The VH3100 hardness testing system provides the ultimate high capacity testing platform capable of performing 150 make and measure indents an hour (with 10 seconds dwell time) using the fully automated test program. The VH3100 with its extensive variety of scales and magnifications excels through maximum flexibility for automated hardness testing to ASTM and ISO no matter whether a quality control production environment or in a test laboratory.
Wilson® VH1150 Macro Vickers Hardness Tester
The Wilson VH1150 is the ultimate evolution of the deadweight Vickers hardness tester with a unique load range, 300gf – 50kgf, combined in one machine. The automatic load selection eliminates the need for a hard to operate manual selector knob, and opens new possibilities in (semi-) automation applications. The Vickers hardness testing machine’s functions like multi-scale conversion, shape correction and USB data export, make hardness testing easier and help you focus on your actual process control.