In a wide range of markets and products, today's design engineers face the same instruction: "make it lighter, smaller and more efficient." From improving the fuel efficiency of aerospace vehicles and transportation equipment to microelectronic technology for cutting-edge wearable technologies and portable medical devices, manufacturers are seeking to reduce weight, save energy and optimize space.
Titanium alloy has light weight and high strength. It provides maximum force in a small space. It is both hot and cold "feasible" titanium has low torsional modulus and can be heat treated after forming. Its thermoforming ability makes it possible to manufacture larger springs.
Springs, such as titanium alloy springs and steel springs, are widely used in various fields of production and life. For example, cars, motorcycles, bicycles and other vehicles, computers, clocks, light switches, toys, clips and other necessities of life use springs, which mainly play the role of shock absorption and energy storage. In this article, let's try to find out the difference between titanium alloy spring and steel spring.
Disadvantages of Steel Spring
At present, the most widely used spring material is steel, which is required to have high strength and elastic limit. However, with the increase of steel strength and hardness, the sensitivity to stress concentration and the tendency of spontaneous fracture under constant load will also increase.
If the hardness of the steel is too low, the return ability of the spring will be reduced or even fail, thus losing the function of the spring. Although the spring is only a small part, once it breaks and fails, it will often lead to the loss of function of a certain equipment or system, and even lead to serious consequences.
Advantages of Titanium Alloy spring
In recent years, titanium alloy has become a new choice of spring materials because of its high specific strength, low elastic modulus and good corrosion resistance. Compared with steel spring, titanium alloy spring has the advantages of light weight, small volume and high resonance frequency. Its elastic modulus is almost half that of steel, but its strength is almost the same as that of spring.
Because of these advantages, in practical application, titanium alloy spring can be designed with smaller diameter and fewer turns than steel spring, and the weight is greatly reduced.
Disadvantages of using titanium: the prospect is changing
The strength of titanium is only about 75% of that of steel. Although this is a consideration for heavy applications, engineers can compensate to some extent by increasing the wire diameter of titanium springs. The long-term wear resistance of titanium is not as high as that of steel, but anodizing and other methods can improve the surface durability. The biggest disadvantage of specifying titanium alloys is cost. Traditionally, titanium is expensive. Its price may be six to seven times that of steel.
The good news for titanium is that today's manufacturing research is exploring more cost-effective ways to produce titanium wire. New titanium alloys, special manufacturing technologies and the improvement of total titanium productivity are steadily reducing their costs
From the macro perspective of titanium, another consideration is the return cost in practical application. For example, if titanium springs are used in lightweight projects of freight trucks, and these springs help to reduce weight and save subsequent energy when operating the vehicle, the cost of high-quality alloys such as titanium may be offset or offset (over time) by their performance in specific applications.
Titanium is a high-quality alloy, which is worth considering in a wide range of applications where size, weight and properties are crucial. The leading spring manufacturer, Zihuoli Spring Co.,Ltd., can manufacture custom springs from a variety of light and high-quality alloys and provide expertise and assistance in specifying high-performance metals for specific spring designs and applications.
