The broaches are precision-manufactured from special materials with advanced processes, delivering high hardness, excellent wear resistance, and long service life. Operation is simple and convenient, ensuring smooth workflow in laboratories or production settings.
The resulting machined notches comply fully with national and international standards such as GB/T 229-2020 (“Metallic Materials — Charpy Pendulum Impact Test Method”) and ASTM E23-02 (“Standard Test Methods for Notched Bar Impact Testing of Metallic Materials”). Thanks to the single-pass broaching principle, notch consistency is exceptional, guaranteeing reliable and repeatable impact test results.
Test Standard of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
GB/T 229-2020, ASTM E23-02
Application of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
It is primarily used in materials testing laboratories and manufacturing facilities to accurately machine standardized notches on impact test specimens, such as those used in Charpy and Izod impact tests.
Working Principle and Structural Features of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
- Hydraulic System
Includes an oil tank, motor, pump, and hydraulic cylinder. The main motor powers the pump, which draws oil and supplies it to the cylinder. The cylinder then drives the tool holder vertically at a controlled speed of 2.0 m/min to broach precise notches.
- Tool Holder
Equipped with specialized V-notch or U-notch broaches, the tool holder also features a lubricating oil cup. Operators must fill this cup with lubricating oil (typically No. 46 machine oil or equivalent) prior to use to ensure smooth broaching.
- Maintenance
Before and after each broaching cycle, iron chips should be removed from the tool edges using an oil-dipped brush to maintain cutting efficiency and prevent damage. Regular cleaning of the cutting edges is essential.
- Oil Management
An oil drip pan beneath the cylinder collects excess lubricating oil. This pan should be cleaned periodically according to the machine’s operating schedule to prevent buildup and maintain safe operation
Operating Conditions of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
- Operating Environment:
The installation site must be free from vibration, mechanical shock, and corrosive media. A clean, dry, and well-ventilated environment is recommended for optimal performance and durability. - Machine Installation
The machine must be installed in a vertical position on a stable and level foundation to maintain accuracy and prevent operational disturbances. - Grounding
A grounding symbol is located next to the power socket at the lower rear of the machine. For safety and proper functioning, the machine must be reliably grounded in accordance with local electrical safety standards.
Technical Specifications of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
| Model | TT-HBM340 Hydraulic Broaching Machine for Test Specimen |
| Notch Types Processed | V-type, U-type (2mm) |
| Specimen Dimensions Processed | 10(7.5, 5, 2.5) x 10 x 55 mm |
| Broaching Speed | 2.0 m/min |
| Broach Stroke | 340 mm |
| Broach Material | W18Cr4V (High-Speed Steel) |
| Power Supply | 380V, 3-phase, 4-wire, 50Hz |
Standard Configuration of TT-HBM340 Hydraulic Broaching Machine for Impact Test Specimen
| Items | Qty |
| Main Unit | 1 set |
| 2mm V-notch Broach | 1pc |
| 2mm U-notch Broach | 1 pc |
| Hydraulic System | 1 set |
