Charpy notched-bar impact test

Description:

• In the field of industrial quality control, the impact test is a widely used test method with which to quickly and easily determine characteristics for a material or component analysis.
• The WP 400experimental unit is a solid-pendulum impact tester based on DIN EN ISO 148-1, designed for the Charpy notched-bar impact test.
• The clean layout and simple operation mean the experimental sequence can be observed in all details and phases.
• In the experiment, the hammer attached to a pendulum arm describes an arc.
• At the lowest point of the hammer path, the hammer transfers part of its kinetic energy to the notched specimen.
• The specimen is either destroyed or bent by the impact and pushed between the supports.
• The notched-bar impact work required to deform the specimen is read directly off a large scale.
• By using the WP 400.20system for data acquisition, the measured values can be transferred to a PC where they can by analysed with the software.
• In order to vary the output energy, the mass of the hammer can be changed by adding or removing weights.
• A brake reduces the residual energy of the hammer on each swing until it reaches zero.
• The required protective cover for the operating area allows the experiments to be conducted safely and is available as accessory WP 400.50.
• The hammer is triggered with two hands for safer operation.
• The experimental results allow quality control and an analysis of the fracture behaviour of different metallic materials.
• Non-metallic specimens can also be used.
• Specimens with different notch geometries, in different materials and specimen dimensions are included in the scope of delivery.

Technical Details:

Specifications:

• classic Charpy notched-bar impact test
• pendulum impact tester based on DIN EN ISO 148-1
• hammer mass can be varied by adding or removing weights
• brake to reduce the residual energy
• safe operation thanks to two-hand release of the hammer
• required protective cover for pendulum impact tester vailable as accessory WP 400.50
• scale for displaying the notched-bar impact work
• notched-bar impact specimens (U/V/R notch): free cutting steel, heat treatable steel, construction steel, brass
• system for data acquisition (WP 400.20) available as an option

Technical Data:

• Pendulum impact tester
• work capacity:
• 15Nm
• 25Nm (with extra weights)
• Hammer
• weight: 2,05kg and 3,42kg (with extra weights)
• extra weights: 4x 0,342kg
• impact velocity: 3,8m/s
• head: 745mm
• Supports for specimens:
  • gap: 40mm
  • Notched bar impact specimens:
    • L x W: 10x5mm, 10x10mm
    • cross-section at the notch root: 10x7mm, 10x5mm, 10x3mm
    • Specimen materials:
      • free cutting steel
      • heat treatable steel
      • construction steel
      • brass

Dimensions & Weight:

• L x W x H: 1000x300x1000mm
• Weight: approx. 55kg

Required for Operation:

• protective cover / WP 400.50

Learning Objectives/Experiments:

• determine the notched-bar impact work
• determine the notched-bar impact strength
• analyse the fracture surface characteristics
• plot a notched-bar impact work–temperature diagram
• influence of notch shape, material and specimen temperature on the notched-bar impact work

Scope of Delivery:

• 1 experimental unit
• 1 set of weights
• 1 set of specimens (90 pieces)
• 1 set of instructional material

Features:

• Charpy notched-bar impact test
• classic method from destructive materials testing for quality control and analysis of the fracture behaviour of metallic materials
• pendulum impact tester based on DIN EN ISO 148-1

Accessories:

• Required:
• WP 400.50Safety cage for pendulum impact tester
• Optional:
• WP 400.20 System for data acquisition
• WP 400.01 Set of 10 V specimens 10×5, construction steel
• WP 400.02 Set of 10 V specimens 10×5, CuZn
• WP 400.03 Set of 10 V specimens 10×10, CuZn
• WP 400.04 Set of 10 U specimens 10×5, free cutting steel
• WP 400.05 Set of 10 R7 specimens, free cutting steel
• WP 400.06 Set of 10 R5 specimens, free cutting steel
• WP 400.07 Set of 10 R7 specimens, heat treatable steel
• WP 400.08Set of 10 R7 specimens, construction steel
• WP 400.09Set of 10 V specimens, construction steel

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.