Tástálaí cupáin
Tástálaí Punchála Liathróide
Precision Cupping Tester
Precision Ball Punch Tester
Tástálaí Cúplála Leath-Uathoibríoch
Tástálaí Leath-Uathoibríoch Punchála Pheilíní
Ductility Ball Punch Tester
Biaxial Streching Cupping Tester
Spheric Ball Penetrator Punch Tester
Expert Ball Punch Deformation Test
ASTM E643 BS 3900E4 ISO1520

ASTM Ball Punch & Cupping Test Method - Iarratas:

The ASTM ball‑punch deformation method evaluates how metallic sheet materials behave when exposed to controlled biaxial stretching. The Automatic Biaxial Ball Punch Tester QPI‑BPT6800 performs this test by driving a precision‑machined spherical penetrator into a clamped specimen under a constant, repeatable loading profile.

During the test, the sheet is rigidly secured between two dies to eliminate slippage. The spherical punch advances at a defined speed, forcing the material to deform simultaneously in the radial and circumferential directions. This produces a true biaxial strain field, allowing engineers to study crack initiation, ductility limits, and failure modes under multi‑directional stress.

The instrument continuously records punch displacement, applied force, and the moment of rupture. The resulting curve provides insight into:

• elastic and plastic deformation behavior

• strain hardening characteristics

• maximum dome height before fracture

• localized thinning and crack propagation

This method is widely used for battery foils, aerospace laminates, packaging metals, and precision sheet alloys where biaxial performance is critical. The QPI‑BPT6800 automates the entire sequence, ensuring stable punch velocity, repeatable clamping pressure, and high‑resolution measurement accuracy.

ISO Cupping Test Method Automatic Cupping Tester QPI‑BPT2800 - Application:

The ISO cupping test determines the resistance of coated or uncoated metal sheets to deformation when subjected to a controlled dome‑forming process. The Automatic Cupping Tester QPI‑BPT2800 performs this evaluation by pressing a hemispherical punch into the material until cracking or coating failure occurs.

The sheet is locked between a fixed die and a pressure ring to maintain uniform clamping. As the punch rises, the material is drawn into a dome shape, generating a combination of tensile and compressive stresses. This controlled deformation reveals how the substrate and surface finish respond to stretching, bending, and micro‑fracture formation.

Engineers use the cupping value — the punch depth at first visible failure — to assess:

• coating adhesion

• substrate ductility

• resistance to cracking

• surface integrity under forming loads

• suitability for deep‑drawing or bending operations

An QPI‑BPT2800 automates punch movement, clamping force, and failure detection, producing consistent results across large sample batches. High‑precision sensors capture punch travel and load, enabling detailed analysis of forming behavior and coating performance.

An Automatic Cupping Tester QPI‑BPT2800 agus an Automatic Biaxial Ball Punch Tester QPI‑BPT6800 are advanced laboratory instruments designed for evaluating metal sheet deformation under controlled loading. The ASTM ball‑punch method provides biaxial strain analysis for metallic foils and precision alloys, while the ISO cupping method measures coating adhesion and substrate ductility during dome‑forming. Both systems deliver repeatable, high‑accuracy results ideal for quality control, R&D, and production environments.