Cupping Tester

Introducción del producto:

The cupping test provides valuable information about how a metal sheet will behave during forming processes and how a coating will withstand deformation of its substrate. The test specimen, a flat piece of sheet metal (often coated), is securely clamped between a die and a blank holder to prevent slipping during the deformation. A spherical or hemispherical punch is then pressed into the center of the specimen from one side, creating a gradually deepening indentation or "cup."

The test is typically continued until either the metal substrate shows the first signs of cracking (for evaluating metal ductility/formability) or the applied coating exhibits cracking, detachment, or other forms of failure on the deformed surface (for evaluating coating properties). The depth of the punch indentation at which failure is first observed is measured and recorded. This depth is the cupping value or Erichsen Index, indicating the material's or coating's ability to withstand deformation. The test can be performed manually by turning a crank or using a hand wheel to advance the punch while visually observing the specimen, or automatically with motorized punch movement and integrated optical or other detection systems.

The instrument is used in laboratories for:

Quality control of incoming sheet metal materials to verify their formability and ductility.

Evaluating the flexibility and adhesion of paint, lacquer, coil coatings, and other finishes on metal substrates.

Research and development of new metal alloys and coating formulations.

Assessing the effect of material thickness, surface treatment, or aging on formability and coating performance.

Ensuring that materials meet specified requirements for deep drawing or forming processes.

Product Advantages:

Provides objective, quantitative data (cupping depth) on the formability of metal sheets and the flexibility/adhesion of coatings.

Essential for quality control of sheet metal and coated products used in manufacturing processes involving deformation.

Simulates the stresses and strains encountered during pressing, drawing, and forming operations.

Helps predict how a material or coating will perform in real-world manufacturing processes.

Relatively simple and quick test to perform.

Standard compliant test methods are widely available and recognized (ISO 1520. ASTM E643).

Useful for comparing the properties of different materials or coatings.

Características:

Touch screen control technology

Customized operation system

Mouse directly connect with instrument

Directly input testing parameter via screen or mouse

Realtime display cupping process

Realtime monitor cupping image

Realtime show cupping speed and depth

With video and photo

Automatic calibration zero

Manual and preset mode

Cumplir con los estándares:

ISO 1520

ASTM E643 EN

ISO 1520

DIN 50101

DIN 50102

Technical Specification:

Diameter of punch： ф20mm(0.8 inch)

Maximum dent depth： 18mm

Maximum depress power: 2.500N

Precision of dent： 0.01mm

Suitable thickness of test pane：0.3mm-1.25mm

Note: The max measurable thickness varies by material:

304 stainless steel: up to 0.7mm; A3 steel panel: up to 1.25mm; Aluminum panel: up to 2mm (thickest).

Net Weight：52 KG

Ovenall Size： 466mm×322mm×500mm (L×W×H)

Ordering Information：310---Automatic Digital Cupping Tester