PresseBox
Press release BoxID: 55627 (Arnold Umformtechnik GmbH & Co. KG)
  • Arnold Umformtechnik GmbH & Co. KG
  • Carl-Arnold-Straße 25
  • 74670 Forchtenberg
  • http://www.arnold-fastening.com/
  • Contact person
  • Sara Megerle
  • +49 (0)7947/821-312

Arnold Umformtechnik: Remform screws – a success in the balancing act between cost and quality

Lower costs and increased security with plastic fasteners – the new generation of Remform screws forges new areas of application – concentrated collaboration with manufacturers at the new model development stage.

(PresseBox) (Forchtenberg, ) Higher quality and lower costs - a concept already in practice, but the automotive industry's collaborative partners need to concentrate even more on raising quality and reducing costs. In its philosophy of being "not so much a manufacturer as a service provider", Arnold Umformtechnik has evolved a company policy that is proof that, by being involved in their automotive clients' development process, their clients can achieve enormous cost-savings, with maximum quality. In the example of direct fastening technology in plastics, Arnold has recently demonstrated that the integral approach undoubtedly increases the opportunities for achieving this goal.

Mario Metzger, Product Manager at Arnold summed up these consistent efforts: "by getting involved in the R&D process at an early stage, we have been able in recent years to make a sustained contribution towards the trend for direct screw connections for plastic fasteners in the automotive industry." The argument gains credence in that plastic is increasingly in use as a material in the automotive industry. The moulding capacity, the weight and recyclability of the synthetic materials are positive points in favour of using them in future models. To an increasing extent Remform fasteners from the Arnold range ensure that plastic components stand firm from a costs point of view at all levels of added value.

Costs are saved throughout the process chain A costs study carried out by Arnold, together with leading companies from the components industry, showed that a sustained reduction in fastening costs could be made over the entire process chain by using plastic direct fasteners. As opposed to manual screw fasteners with metric inserts, an average saving of €0.26 per fastening could be made by using Remform direct fastener technology. Half of this potential saving (€0.13) comes from assembly costs. A further €0.10, representing 38% of the saving, is due to reduction of manufacturing costs, and only €0.03, or 11%, is down to the actual cost of the parts. Even where the manufacturing process is fully automated, already cutting assembly costs by €0.08 since no personnel is required, the savings potential is still €0.20 per fastening.

These effects result from the special self-tapping capacity of Remform screws. Remform fasteners are particularly advantageous where the core hole is pre-cast. This automatically eliminates the costly processes involved in preparing the screw location. The cost of inserts is completely eliminated from the overall calculation, along with the manufacturing costs involved in handling the inserts. At the same time the fast screw-in speed cuts production time - increasing the potential of direct screw fasteners even further.

The advantages over metric variants The asymmetric thread geometry of Remform screws is forging new areas of application for plastic fasteners, whereas in the past the metric variant was mainly used for narrow tappets.bosses. The screw-in force incurred is automatically guided towards the axial - and thus the correct - direction. Compared with 30-degree low angle screws the results of overturn torque, strip load and the difference between minimum overturn torque and maximum screw-in torque is often well over 30 percent.

To ensure that the fastener location cannot be damaged, the asymmetric flanks of the latest Remform generation ensure that edge stresses are reduced as the thread is tapped. At the same time the diminishing flank angles towards the crest of the thread reduce the radial stresses that could cause the tappetboss to explode.



Patented thread geometry Remform screw connections provide completely secure fastenings. To improve material flow, the flank that is averted away from the screw head has been provided with a radius. The steep side that has moved towards the screw head catches the displaced plasticmaterial and thus automatically raises the flank overlap. This guarantees the high cross-thread forces with tensile force and torque. At the same time the steep flanks ensure that most of the force is steered axially, thus increasing the likelihood of the nut thread breaking up. The wide stress ratio tolerance between forming torque and overturn torque at the moment of tensioning torque provides additional safety tolerance; this means that screws that are fully tightened - always.

In the Remform technology Arnold's fastening specialists have convincingly demonstrated that the application range for self-tapping screws in direct plastic fastenersdirectly into plastics can be expanded greatly. Remform screws offer cost savings throughout the entire system cost chain. This opens up maximum cost-cutting potential in assembly and processing, whereas the cost of the material represents a negligible amount. At the same time Remform fasteners improve the mechanical properties of the fastening.

Arnold Umformtechnik GmbH & Co. KG

The ARNOLD Group – solutions which connect
Whereas the Arnold name has always signified and still does stand for “fasteners”, in recent years the range of products has expanded.

Today, Arnold is a group of companies supplying a comprehensive range of fastener products and related services besides the parent company ARNOLD UMFORMTECHNIK GmbH & Co. KG, Forchtenberg-Ernsbach in Germany, members of the Arnold Group include subsidiaries Arnold & Shinjo, also based in Forchtenberg-Ernsbach, Germany, and ARNOLD Technique France, based in Lyon, France. In 2003 the overall group, employing just under 500 people, achieved a sales turnover of over Euro 80 million. The transformation from a purely manufacturing company into a comprehensive service provider to the fastener industry began in the mid 1970s, when the company decided to conccentrate on manufacturing very high-quality technological fasteners. As it entered the higher quality fastener market, the company faced new challenges. Today Arnold works with major companies in the automotive and electrical industries, both at home in Germany and abroad, and becomes involved early on as their customers develop and design new parts. First of all this requires intensive on-site consultation along with comprehensive customer services, and secondly it requires highly qualified employees who can rise to, and meet the demands of the market.

•To be able to meet the particular demands of each of the industrial sectors, Arnold has divided its marketing activities into automotive and trade and industry divisions. Thus, customers can call upon specialist teams able to offer customised advice in order to provide innovative solutions.

•To meet the challenge of such development partnerships, our qualified staff develop the best possible fastener solutions by visiting customers at home and abroad, and implementing the results of their visits at our own engineering design and development departments.

•By constantly analysing industry applications, the products themselves, and users´requrements, ARNOLD is always in an excellent position to be able to develop new solutions to problems and incorporate thm into the development process. So, with ARNOLD´s own production expertise, we are able to produce top quality innovative products and individual industry solutions that set new market standards. Furthermore, ARNOLD is an important and integral part of the Supply Chain. Working very closely with OEMs and their suppliers, ARNOLD is able to react very quickly to changes in the market, and to incorporate the knowledge gained into enhanced products for customers. A Pre-Sales and After-Sales service covering Key Account Management, modern logistics systems and customer seminars rounds off the range of ARNOLD services.

The Arnold Group is a wholly owned subsidiary of the Würth Group, which with over 50,000 employees and more than 320 companies world-wide operates on a global basis with earnings of over 6 billion euros. So, against that background, the Arnold Group represents a secure partner in the best possible position to serve the global requirements of the market.


Die ARNOLD Gruppe – Lösungen, die verbinden
Wurde der Name Arnold in der Vergangenheit noch oftmals automatisch mit dem Begriff „Verbindungselemente“ gleichgesetzt, so hat sich dies in den letzten Jahren grundlegend geändert.
Heute ist Arnold eine Unternehmensgruppe zu der neben der Muttergesellschaft ARNOLD UMFORMTECHNIK GmbH & Co. KG, Forchtenberg-Ernsbach (D), noch die Töchter Arnold & Shinjo, ebenfalls Forchtenberg-Ernsbach (D), und Arnold Technique France, Lyon (F), gehören. Die Unternehmensgruppe erwirtschaftet mit knapp 500 Mitarbeitern über 80 Mio.€ Umsatz. Der Wandel setzte bereits Mitte der 70er Jahre ein, als man sich auf die Herstellung von anspruchsvollen Verbindungselementen konzentrierte. Mit dem Eintritt in das Marktsegment der höherwertigen Verbindungselemente kamen auch neue Herausforderungen auf das Unternehmen zu. Arnold arbeitet heute national und international mit den „großen“ der Automobil- und Elektroindustrie zusammen und wird von diesen frühzeitig als Entwicklungspartner in Entwicklung und Konstruktion von Neuteilen eingebunden. Dies bedingt zum einen eine intensive Betreuung vor Ort und umfassende Dienstleistungen für die Kunden und zum anderen hoch qualifizierte Mitarbeiter, welche den Anforderungen des Marktes gerecht werden können.
Das Unternehmen Arnold hat sich diesen Herausforderungen mit Erfolg gestellt:

•Damit die speziellen Anforderungen der einzelnen Branchen erfüllt werden können, ist man bei Arnold dazu übergegangen den Vertrieb in die Sparten Automotiv und Industrie + Handel zu gliedern. So entstanden Spezialistenteams, die den Kunden mit individueller Beratung innovative Lösungen anbieten können.
•Um dem Anspruch der Entwicklungspartnerschaft gerecht zu werden, erarbeiten qualifizierte Mitarbeiter national und international vor Ort beim Kunden und in der eigenen Konstruktions- und Entwicklungsabteilung die optimale Verbindungslösung.
•Durch die kontinuierliche Analyse der Anwendungsfälle, der Produkte und der Anforderungen der Anwender ist ARNOLD in der Lage selbständig neue Problemlösungen zu entwickeln und diese in den Entwicklungsprozess mit einfließen zu lassen. Verbunden mit dem ARNOLD eigenen Produktions-Know-how entstehen so innovative Produkte und individuelle Branchenlösungen die neue Marktstandards setzen. Des weiteren ist Arnold ein wichtiger Integrationspartner in der Supply Chain. Durch die enge Zusammenarbeit mit den OEMs und deren Zulieferer ist ARNOLD in der Lage, bei Entwicklungen in der Zuliefererindustrie auf wichtige Veränderungen des Marktes hinzuweisen. Ein internationaler Pre- und After-Sales-Service der u.a. moderne Logistiksysteme, Key-Account-Management und Kundenseminare umfasst, rundet die Palette der Dienstleistungen ab.

Die Arnold Gruppe selbst ist ein 100%iger Bestandteil der globalen Würth-Gruppe, die mit über 50.000 Mitarbeitern und über 320 Gesellschaften weltweit über 6 Milliarden Euro erwirtschaftet. Durch diesen Hintergrund stellt die Arnold-Gruppe für jeden Kunden einen sicheren Partner dar, der die globalen Anforderungen des Marktes optimal bedienen kann.