It’s no secret that one of the safest ways to travel in today’s world is by air – and that’s down to the precision and expertise of engineers and aircraft mechanics within the aerospace industry. Of course, air travel is one of the most reliable forms of transport thanks to the tools used to maximise efficiency. Digital torque wrenches might just be a small element of the overall manufacturing process – but their use and the importance of measuring torque cannot be overlooked.
In fact, torque measurement plays an indispensable role in aerospace engineering, influencing various aspects of design, performance, safety and maintenance of aircraft. Aerospace vehicles operate in some of the most demanding environments, so ensuring that every component functions correctly, reliably and safely is crucial. And getting the torque value wrong, when tightening a simple fastener, can lead to severe consequences.
Digital torque wrenches ensure manufacturers are applying the correct torque to each fastener. The torque wrench allows for precise measurement and so must be accurate, which means regular torque calibration is key, especially calibration performed to traceable national standards.
Here, the torque measurement experts at Crane Electronics explore why torque measurement is so essential in the aerospace industry.
1. Enhancing quality
One of the main reasons torque measurement is so critical in the aerospace industry is to enhance the overall quality of the aircraft or the critical components that it is made up of. The complexity of aircraft means that such vehicles are made up of thousands of components, each held together by fasteners, bolts and joints. These joints must be tightened to precise specifications to withstand the dynamic loads, excessive temperatures and stresses applied during a flight.
What happens if incorrect torque is applied? This could lead to several problems. Under-tightening might lead to fasteners loosening over time due to the likes of vibrations and mechanical loads. Over-tightening has the potential to lead to the deformation or fracture of fasteners, which could seriously damage the surrounding materials and, worse, compromise the integrity of the entire structure. Ultimately, the lack of precise torque measurement could have catastrophic consequences.
By using digital torque wrenches, accurate torque measurement helps to ensure all connections are secure and capable of withstanding harsh aerospace conditions, therefore maintaining the overall integrity of the vehicle.
2. Optimising engine performance
At the centre of any aerospace vehicle is the engine. And the functionality, safety and longevity of these engines rely on correct torque application. What is more, the efficiency of the engine will have a direct impact on the overall capability and performance of the aircraft.
Accurate torque measurement is so vital in aircraft engines for multiple reasons, including:
- It ensures the precise assembly of components. The correct application of torque ensures that fasteners and bolts are tightened to an exact specification. Inaccurate torque could result in leaks, misalignment, or mechanical failure.
- Optimises performance. By accurately measuring torque, aerospace engineers can optimise an engine’s performance, ensuring that the engine produces the required thrust with minimum energy loss. Not only will this help to achieve maximum performance, but it will help to reduce the amount of fuel consumed, which can, in turn, save money and boost sustainability.
- Help to prevent potential mechanical failures. Incorrect or inaccurate torque measurement can lead to various mechanical failures, which can be detrimental – especially if these failures take place mid-flight. For example, if the torque measurement is too high, it could lead to excessive stress and over time, material damage. Equally, components could loosen to dangerous levels if the torque is too low over time. Either way, these failures can cause engines to shut down, cause serious damage, and even cause engine failure.
3. Enhances safety and reliability
Throughout all strands of engineering, safety is paramount – and the aerospace industry is no exception. Using digital torque wrenches to ensure accurate torque measurement is key to ensuring the safety of aerospace vehicles.
For example, inaccurate torque measurement could lead to the misalignment of a component, which might result in excessive wear and potentially structural damage or engine failure. By ensuring accurate torque measurement, engineers can eliminate such risks, which will enhance the overall safety and reliability of the vehicle.
4. Facilitates regular maintenance
Manufacturers wanting to ensure longevity and long-term reliability of aircraft and engines know that regular maintenance is key. During maintenance, repair and overhaul operations, digital torque wrenches are used to check the tightness of fasteners, helping to identify any parts that might have loosened or degraded over time. Regular maintenance can also identify trends and drift in component torque values allowing operatives to intervene early before an issue becomes a major problem. Storing and analysing the results and data in torque management software systems also helps.
Adopting a proactive approach, enabled by accurate torque measurement, means that engines and aircraft remain in optimum position by allowing engineers to detect any potential issues before they become serious. Addressing these early on will help reduce the risk of costly repairs and unexpected in-flight failures.
5. Compliance with industry standards
Those who work in aerospace will know it’s one of the most heavily regulated industries, with stern standards and regulations governing throughout. Compliance with these standards is not just a legal duty but is also critical to ensuring the safety and reliability of aerospace vehicles. Accurate torque measurement enhances this by ensuring all components meet specific industry standards and manufacturers adhere to industry best practices. This also helps to enhance trust with consumers and boosts brand credibility.
Torque measurement solutions for the aerospace industry
As a global leader in torque management, Crane supplies some of the world’s most renowned aerospace brands with torque measurement solutions. Our digital torque wrenches are specifically designed to enhance quality, optimise performance and maximise safety, supporting the overall aerospace manufacturing process.
At Crane, we are proud to provide a personal approach, allowing us to offer bespoke torque measurement solutions to aerospace customers. For more information on any of our products or services, or alternatively, to discuss a bespoke order, contact Crane Electronics on 01455 25 14 88 or email sales@crane-electronics.com.