Sustainability in fastening technology

Climate protection is becoming an increasingly urgent topic, and with it, the need to reduce carbon emissions comes to the fore in every aspect of our lives.

When it comes to the need to cut carbon dioxide output, particular attention is directed manufacturing industries – especially the automotive industry. But suppliers too need to play their part with new concepts, procedures, and products.

Sustainability is of extreme importance for the Arnold Group based in Germany. Sustainability is one of five strategic approaches employed by the fastener manufacturer – along with emobility, internationalisation, lightweight engineering, and digitisation.

Climate protection and the sustainable use of resources have long been firmly founded principles for the company based in the south of Germany, well before the increasingly forceful climate change debates of today.

This is why Arnold has set up the ACO2-Save initiative. With this initiative, customers and users are actively supported to reduce CO2 emissions by designing and using fasteners and cold formed parts sustainably. A carbon calculation takes place as early as the development process.

Using its own CO2 calculator – developed in-house – Arnold is able to determine the product carbon footprint for the part the customer is enquiring about, and then can work with the customer to improve it. The aim here is that at the end of the development process, the product is technically of high quality, and optimised with regard to costs and its CO2 footprint.

To curb CO2 emissions as early as the development stage, for example by avoiding making unnecessary samples and protogypes, Arnold’s developers make use of digital forecasting tools such as FEM analysis and their own prediction program, developed inhouse. This greatly reduces the number of feasible variants thus saving time, money, and CO2.

However, the greatest savings are made by using innovative fastening and cold-forming technologies. For example, working with its customers, the company analyses options for changing the parts production technology – including whether parts that until now had been machined, might be more efficiently produced as cold-formed parts. It is also possible to check whether any existing threaded screws could be replaced by thread-forming screws, completely doing away with the need for thread-cutting tools and the emissions they cause.

A further option is to reduce size by using innovative fasteners, for example by replacing an M5 screw with an M4. And finally, innovative fastening systems help to reduce weight – especially when it comes to joining multi-material mixes – and that ultimately means a reduction in the vehicle’s overall emissions.

To illustrate exactly how this ACO2-Save initiative is working, one project involved a special screw made of aluminium and implemented in a customer’s component, reviewed with regard to technology, cost and CO2 emission. A ‘Conform Next’ screw was developed as an alternative. Due to its engineered design, it proved suitable for use in components with bigger diameters, longer components, more complex geometries and heavier weights.

The volume of the part used previously was 8,733mm3, each item weighed 23.5g, and was machined in the traditional way. A turned part blank was used on the production line and the volume of that was 5,830m m3, weighing in at 69.2g each item.

Arnold’s developers carried out an ACO2-Save analysis and changed the part to a formed part on the Conform range. Following the improvement the volume of the formed blank was 9,135 m m3 and each one weighed 24.82g. In other words, the forming process requires much less material input since there is very little wastage during the production process.

Besides a considerable improvement in costs created by lower materials requirements for the cold-forming process, this also of course has a considerable effect on the product carbon footprint for this special screw. By reducing the working weight, creating less waste, and thus making the production process more efficient, it was possible to reduce all the CO2 emissions created by this screw by 45 per cent.

ARNOLD UMFORMTECHNIK GmbH & Co. KG

Carl-ARNOLD-Straße 25
Forchtenberg-Ernsbach
74670
GERMANY

+49 7947 821-0

service@arnold-fastening.com

https://www.arnold-fastening.com/en/

More products
6 days ago
Mould making at Emka for injection moulding of plastics and metals
Emka reports that it is now one of the top three mould makers in Europe – producing 900 moulds a year for plastic injection, including polyamide/glass and Grivery, as well as zinc and aluminium die casting.
1 week ago
Essentra Components cuts energy usage by 15% globally
An innovative energy reduction initiative based on the concept of insulated jackets is helping industrial components manufacturer Essentra Components cut its energy usage when heating machine barrels by 15% and save CO2 emissions in the process.
1 week ago
Bostik launches new engineering and repair adhesives for marine industry
Bostik has launched a range of products including within its engineering adhesives portfolio, Born2Bond, to provide an essential toolbox to support the marine industry in delivering sustainable repairs and manufacturing.
1 week ago
Technical manager retires after long career with Chemique Adhesives
After 34 years with UK adhesives manufacturer Chemique Adhesives, John Bellerby stepped down as technical manager at the end of July.
1 week ago
The countdown begins to Rivetnut’s new website launch
Rivetnut Technology Systems (RTS) will be launching its new website on 8 August, and will be adding new product lines and increasing the available range of products on the site.
2 weeks ago
PEM introduces new buy-back scheme
PEM has introduced a buy-back scheme where customers have the ability to trade in their old PEMSERTER or Haeger machines and can receive up to 8,000 euro in return, where they can put those funds towards a newer upgraded Haeger model.
2 weeks ago
Permabond races to the finish of the Triton Racing team car
When Triton Racing found itself desperate for an adhesive supplier with a stock of a carbon fibre bonding adhesive, with the team’s car’s reveal fast approaching, it turned to Permabond.
2 weeks ago
Spirol launches new and improved website
Visitors to the Spirol website will now find it even easier to connect with the company’s global locations, request technical support, submit an RFQ, as well as purchase product through their integrated eCommerce website.
2 weeks ago
Intertronics supports 3D printed bioelectronics research
When the Department of Automatic Control and Systems Engineering (ACSE) at The University of Sheffield was looking for a way to accurately 3D print bioelectronic sensors, it reached out to Intertronics for support.
3 weeks ago
Southco locks out package theft with secure parcel boxes
When MB Sentinel needed a high quality locking solution for its mailbox and package delivery boxes for residential and commercial buildings, it turned to Southco.

Login / Sign up