Cutting, grinding, and finishing steps that produce test pieces with required geometry, surface integrity, and alignment before mechanical, impact, or microstructural testing.
Cutting, grinding, and finishing steps that produce test pieces with required geometry, surface integrity, and alignment before mechanical, impact, or microstructural testing.
Specimen preparation is not a measured property—it is the workflow that ensures test results reflect material behaviour rather than machining damage, wrong dimensions, or misaligned notches.
Routes include crushing and milling for bulk sampling, machining for tensile rounds and Charpy bars, and grinding/polishing for metallographic or hardness mounts.
Each downstream test (tensile, Charpy, hardness) references allowable preparation in its standard. Document heat-affected zones, coolant, and final dimensions on the test report chain.
Overheating during cutting, incorrect notch root radius, and out-of-tolerance gauge lengths are leading causes of rejected mechanical tests.
Vector VTR-1011-XL Thor — heavy-duty continuous-feed jaw crusher with 300 × 450 mm jaws, up to 90 mm feed, 295 mm jaw width, ~1 mm minimum product, 150–300 kg/h throughput, 7.5 kW drive, Mohs ≤ 8, 7″ touchscreen HMI, jam detect & clear, optional automatic splitter.
Series: Thor
Vector VTR-1011 Nysos — heavy-duty laboratory jaw crusher with up to 300 kg/h throughput, 45:1 crushing ratio, stepless 0–30 mm gap, and interchangeable manganese, stainless, or tungsten carbide jaws for contamination-aware sample prep.
Series: Nysos
Vector VTR-1013 Hyperion — laboratory drum ball mill for ultra-fine grinding down to ~200 µm, 33 cm chamber, up to 24 h continuous run, soundproof cabinet, digital door interlock, and 380/220 V compatibility.
Series: Hyperion
Vector VTR-1012-C Gaia continuous vibratory disc mill — integrated grinding cell with automatic feed and proportional sample divider for nonstop prep; meters 2–3 mm feed and continuously discharges fines below 0.5 mm.
Series: Gaia
Compare measured ISO 527 and ASTM D638 tensile specimen dimensions against reference geometry within ±0.2 mm.
Open calculator →Grinding and Polishing
Sequential abrasive steps from coarse SiC paper through diamond suspensions to remove deformation and achieve a scratch-free surface for optical etching and microscopy.
Metallographic Mounting
Encapsulating a specimen in resin (hot compression or cold pour) to support edges, retain fragile features, and produce a flat surface for grinding and polishing.
Charpy Impact Test
A notched bar is broken by a swinging pendulum striker; absorbed energy KV or KU (joules) characterizes toughness and ductile-to-brittle transition versus temperature.
