Metal material impact testing is of great significance in casting and forging factories.

In the application field of metal materials, whether it is a foundry or a forging plant, the performance of metal materials is directly related to the quality, safety and service life of the products. Among them, the impact test of metal materials plays an indispensable role as an important means to evaluate the performance of materials under sudden impact loads. 

The Importance of Impact Test

In the actual working environment, metal materials are often subjected to sudden impacts, such as violent collisions during mechanical failures and accidental collisions during equipment operation. Impact tests can simulate these actual scenarios and gain an in-depth understanding of the impact resistance and damage mechanism of materials. Through impact tests, factories can ensure that the materials used can withstand potential impacts in the intended application and provide guarantees for the safety of products. At the same time, the data provided by the test helps to predict the performance of materials in actual applications, determine the durability and service life of materials and products, and is crucial for product quality control. 

Impact Test Examples In Foundries

In foundries, the castings produced are widely used in various machinery and equipment. For example, the cylinder block of an automobile engine, the bed of a machine tool, etc. These castings may be subjected to impact forces from different directions during operation. 

Taking the production of automobile engine cylinder blocks as an example, after casting, a certain number of cost test bars need to be drawn from the same batch for impact testing. The Charpy impact test method is usually used. The notched specimen is placed on the testing machine, and the specimen is hit by a pendulum to measure the energy absorbed when it breaks. If the energy absorbed by the specimen is lower than the specified standard value, it means that the material toughness of the batch of castings is insufficient. During the operation of the engine, brittle fracture may occur due to the impact force on the cylinder block, resulting in engine failure or even safety accidents. Therefore, the factory will adjust the casting process according to the results of the impact test, such as adjusting the alloy composition, optimizing the casting temperature and cooling rate, etc., to improve the impact resistance of the casting material. 

Impact Test Example In Forging Plant

Forgings produced by forging plants have higher strength and toughness, and are often used to manufacture parts that bear high loads, such as blades of aircraft engines and crankshafts of large ships. During operation, these parts not only have to bear static loads, but also have to deal with various sudden impacts. 

Taking aircraft engine blades as an example, during the flight of the aircraft, the blades may be impacted by bird strikes, airflow disturbances, etc. In order to ensure the safety and reliability of the blades, the forging factory will conduct impact tests on the blade materials after forging. Generally, the Izod impact test method is used to impact the vertically placed specimens. Through the test, the toughness, resilience and fracture resistance of the material under dynamic load can be understood. If the test results are not ideal, the factory will analyze the reasons, which may be insufficient deformation during the forging process, inappropriate heating temperature, etc., and then adjust the forging process parameters in a targeted manner to ensure that the blade material has sufficient impact resistance. 

Sinostar MACH's Impact Test Equipment And Services

Our casting and forging factories have professional pendulum impact test and drop hammer impact test equipment. These equipment can accurately measure the impact resistance of metal materials under dynamic loads. The pendulum impact test equipment applies impact force to the specimen through the swing of the pendulum and measures the energy absorbed by the specimen; the drop hammer impact test equipment impacts the specimen by controlling the height and mass of the drop hammer to simulate impact conditions at different energy levels. 

Using impact test equipment, the factory can accurately obtain the impact performance data of the material, providing a strong basis for the optimization of production processes and the control of product quality. At the same time, the factory can also provide relevant technical support and after-sales service to help the factory better carry out impact testing. 

Metal material impact testing is of great significance in casting and forging factories. By conducting impact tests on cost test bars, the factory can timely understand the impact resistance of the material and take corresponding measures to ensure product quality and safety. Sinostar MACH's impact testing equipment and services provide strong technical support for the factory and help the high-quality development of the metal materials industry.