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No Shortcuts With HAIMER’S Tooling Technology, Only Process-Reliable Machining

No Shortcuts With HAIMER’S Tooling Technology, Only Process-Reliable Machining

Schweiger GmbH & Co. KG from Uffing at Staffelsee in Bavaria specialises in one of the most demanding industries, the automotive industry. For Managing Director Anton Schweiger and his approximately 75 employees, this means having to meet the highest standards of precision and quality with every injection mould produced.

Additionally, they are competing in a global market, which, among other things, is subject to enormous cost pressure. However, facing the strain of global competition, the qualified toolmaker and his team have adjusted and positioned themselves accordingly. They rely on an automated process chain that ensures absolute security and ends with injection moulds that meet all requirements.

In 2016, for example, the company built a new production hall and invested in two DMC 210U and 270U 5-axis DMG Mori machining centres, which are capable of processing even XXL components in one clamping operation. Equipped with an appropriate pallet automation, the machines run around the clock seven days a week, and all with just one-person shifts. On the weekends they run completely unmanned. This requires highest process reliability across all relevant components and functions.

In this respect, Anton Schweiger focuses on tool clamping technology, the often overlooked interface between spindle and tool. It bears great responsibility for the quality of the machining, the service life of the spindle and the tool life. The milling specialists at Schweiger swear by the support and counsel of HAIMER GmbH, Igenhausen. Haimer GmbH, in 40 years, has become the market leader for tool clamping technology in Europe and is considered to be the world leader in tool shrinking and balancing technology.

FULL ARTICLE AVAILABLE >> https://bit.ly/3Gm6ql5

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Joining Forces For Continuous Operation

Joining Forces For Continuous Operation

How polymer knife-edge rollers are making maintenance-free conveyor belts and packaging systems possible, enhancing performance.

Article by igus.


Krones AG produces systems and machines for making, filling, and packaging beverages and liquid food. The industry never sleeps. So it is hardly surprising that Krones systems have to break their own speed records again and again. This becomes a problem when a part cannot withstand the pressure and there is no alternative that can perform better. That is why igus GmbH developed knife-edge rollers made of tribo-polymers for Krones, helping them achieve new records. In 2005, Krones faced a challenge with the Variopac Pro, a fully automatic all-round packaging system: the system’s performance had to be increased by 20 packs per minute. There was therefore an urgent need to change the conveyor belt deflection. Originally, metal rollers with needle roller bearings were used here, but they couldn’t meet the higher performance requirements and were cost-intensive. Looking for an alternative, Krones Design Engineer Jürgen Werner came upon igus GmbH products.

Full Article Available >> https://bit.ly/39VLJig

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Espirit Keeps The Success Flowing For Wet Design

Espirit Keeps The Success Flowing For Wet Design

Founded in 1983 by former Disney Imagineers, Southern California’s WET Design creates water features that are quite a few cuts above the fountains you might see at your local mall or city park. Their expansive portfolio is an impressive showcase of what’s possible when water, light, music, and human ingenuity come together. 

Article by WET Design.


If you’ve ever scrambled for a prime spot to watch the Fountains of Bellagio in Las Vegas, booked a once-in-a-lifetime experience at The Dubai Fountain at Dubai’s Burj Khalifa skyscraper (the tallest building in the world), or stopped to rest at the fountains at Salt Lake City’s City Creek Center, you’ve enjoyed WET’s work. WET installations can be found on three continents and have even made an appearance in the opening and closing ceremonies of the 2002 and 2014 Winter Olympics.

Full Article On Integrating A Variety Of Machines With Ease >>https://bit.ly/3orAFlE

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Sandvik Aims To Lead In Premium Solid Round Tools With New Acquisition

Sandvik Aims To Lead In Premium Solid Round Tools With New Acquisition

Sandvik has signed an agreement to acquire 67 per cent of Chuzhou Yongpu Carbide Tools Co., Ltd, a China based premium solid round tools company, with a call option to buy the remaining part in three years’ time. Chuzhou Yongpu Carbide Tools Co., Ltd is mainly focused on global and local OEMs and connected suppliers operating in China. Its capabilities include the full solid round tools manufacturing value chain with an offer covering blanks, cutting tools, reconditioning and coating services. The company will be reported in Sandvik Coromant, a division within Sandvik Manufacturing and Machining Solutions.

Stefan Widing, President and CEO of Sandvik, says, “The acquisition of Chuzhou Yongpu Carbide Tools Co., Ltd is part of our strategy for our machining solutions business to increase our market share and take a leading position in solid round tools, and at the same time expand further in the Asian market. We are looking forward to welcoming Chuzhou Yongpu Carbide Tools Co., Ltd to the Sandvik Group.”

Chuzhou Yongpu Carbide Tools Co., Ltd will continue to operate under its own brand and focus on developing its offer and market share with the ambition to become a leading premium provider of solid round tools in China. The combined expertise and footprint of Sandvik Coromant and Chuzhou Yongpu Carbide Tools Co., Ltd will drive further geographical expansion in the region, particularly for cutting tools.

“We have long-term strategic commitment to strengthen and develop our business. China is a fast-growing market for solid round tools, and the acquisition of Chuzhou Yongpu Carbide Tools Co., Ltd will further strengthen our presence and enhance our offer to customers in this important region. With its premium position and strong customer focus, Chuzhou Yongpu Carbide Tools Co., Ltd is a great fit for Sandvik Machining Solutions“, says Nadine Crauwels, President of Sandvik Machining Solutions.

Chuzhou Yongpu Carbide Tools Co., Ltd is headquartered in Chuzhou, China, and has around 500 employees. It had revenues of approximately SEK 400 million for the twelve month period Q2 2020 to Q1 2021, an EBIT margin slightly dilutive to Sandvik Manufacturing and Machining Solutions. Impact on earnings per share will initially be neutral.

The transaction is expected to close during the third quarter of 2021.

 

Artificial Hip Joint Manufactured For Precision Fit

Artificial Hip Joint Manufactured For Precision Fit

Artificial hip joints must be manufactured with high precision, especially in the area where the hip stem and the ball joint connect. CERATIZIT has developed an economical production solution for precise interface between hip stem and ball joint.

If a hip joint is affecting quality of life by restricting movement and causing chronic pain, and if conservative treatment methods are no longer helping, the only option is to have an artificial replacement joint implanted – over 200,000 such operations are performed in Germany-alone each year. Those who take this route are hoping for long-lasting improvements. In order to make this hope a reality, as well as a good surgeon and first-rate care, the highest quality ‘spare parts’ are needed.

Prosthetics like this usually consist of a hip stem with ball joint, a hip socket and an intermediate piece to ensure movement is as smooth as possible. Particular attention must be paid to the connection between the hip stem and the ball joint. For the conical surfaces to fit together perfectly, they need to be produced with the highest precision and surface quality. Therefore, the tools used play a crucial role when manufacturing these components. 

“An artificial hip joint consists of difficult-to-machine materials, which not only need to be machined within the narrowest tolerances but also as economically as possible. Ultimately, an artificial hip replacement should be affordable for as many people as possible. We work with great dedication to find suitable tool solutions for these tasks,” explained Dirk Martin, Application Manager Medical at CERATIZIT and member of Team Cutting Tools. 

Meeting Machining Requirements

CERATIZIT is a full-range provider in the machining sector that has a wide range of standard and specially-made tools as well as in-depth machining expertise at its disposal. “With our huge product range and the expertise of our application specialists, we are extremely well equipped for tasks like machining the area where the hip stem and joint ball connect,” stresses Martin. “With our range of tools, we can test all manner of approaches to ultimately find the optimal solution.”

In the case of the artificial hip joint, the customer has particularly demanding and varied requirements. For the hip stem, made from high-strength titanium alloy Ti6Al4V, an angle tolerance of just +/-5‘ must be achieved in the conical connection area. Other tolerances are 3 µm for straightness, 8 µm for roundness and 60 µm for the diameter. It is also important that the specified contact ratio for the cone is achieved and a precisely defined groove profile produced.

The ball joint is made from a cobalt-based alloy (Co-Cr-Mo). Its conical hole must have the same shape, angle and dimension tolerances, as well as the specified contact ratio. However, there must be no marks, ridges or grooves made during machining. Martin mentions another crucial factor: “We need a production solution that is suitable for mass production. This means the machining must be process-secure and require as little monitoring as possible.”

Flexible u-Axis and Special Conical Reamer

To produce the conical outside profile, CERATIZIT’s application specialists opted for pre-machining with a solid carbide conical milling cutter. The subsequent roughing and finishing are then completed using a CERATIZIT u-axis system. 

“This is an interchangeable, freely programmable NC axis for machining centres, which can be used to machine contours or for turning.” explains Martin. 

“Attachment tools and indexable inserts can be used to create contours in holes and external machining work. This usually means that production times can be reduced considerably, while providing optimal surface quality and higher shape accuracy than usual,” he continued.  

This means the desired groove structure can be produced on the stem cone even on a machining centre. This has the benefit that all machining processes can be done on a single machine. Using the conventional process, a lathe and a milling machine would be required, which means additional clamping, aligning, time and money.

To make the conical hole in the ball joint, CERATIZIT’s solution involved the following steps being carried out on a lathe: First, the part is faced to provide a flat surface for the subsequent special solid carbide 180 deg drill with four cutting edges. This is then used to make a hole with a flat bottom. After this an EcoCut Classic drill and turning tool is used to produce the cone with close-contour boring, while a special solid carbide conical reamer ensures the ideal contact pattern and perfect surface quality and tolerance is achieved. The regrinding capability also saves the user further production costs. 

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