Category: Cutting Tools

HORN: New System for Grooving and Parting Off

S234 – this is the name of the newly developed parting system that Horn has developed especially for large grooving depths. The double-edged system enables a maximum depth of cut of 33 mm (1.300″). This means that diameters up to 65 mm (2.560″) can be parted off reliably and economically. The combination of high grooving depths, rigid clamping, high-performance chip breaker geometry and internal cooling makes the system extremely attractive in terms of price/performance ratio.

The inserts are available in cutting widths of 2 mm (0.079”) and 3 mm (0.118″). The corner radii are 0.2 mm (0.008″) and 0.3 mm (0.012”) respectively. The sintered EN geometry ensures reliable chip removal. Depending on the material to be machined, the inserts are available in AS45 and IG65 grades. Square shank holders in sizes 20 mm x 20 mm (0.787 x 0.787″) and 25 mm x 25 mm (0.984 x 0.984″) ensure stable clamping. Horn also offers reinforced grooving blades and tool holders for the modular parting and grooving system. All types are equipped with internal coolant supply.

Please contact us for more information on the new Grooving and Parting Off solutions from Horn.

JBO : SHARK Thread Milling Cutters

Long Tool Life, Short Processing Time and Excellent Surface Quality – three advantages of solid carbide thread milling cutters from Johs. Boss GmbH & Co. KG Präzisionswerkzeugfabrik, Germany.  Available in a wide range of Thread Milling Cutters, Drill Thread Milling Cutters and Indexable Thread Milling Cutters including specials.

The SHARK high-performance Thread Milling Cutters from JBO offer precise thread machining – complemented by the G-thread range within the GFT series (solid carbide three-profile thread milling cutters).

General Advantages of Thread Milling

  1. Threads to different tolerance classes can be produced with same cutter
  2. Tool breakage does not necessarily entail scrapping of the workpiece
  3. Less power needed for cutting internal threads
  4. Short machining times due to high cutting speeds
  5. Excellent thread surface finish
  6. Short chips, hence no chip problems
  7. Right and left hand threads can be produced in blind or through holes by the same cutter
  8. Low cutting forces enable threads to be cut in thin wall workpieces
  9. Cutting speeds and feeds can be matched individually to workpiece material
  10. No change of cutter spindle direction of rotation required
  11. No special tapping chucks required, standard chucks suffice
  12. Threads can be cut to exact depth
  13. Threads can be cut down to near bottom of blind holes
  14. Start of thread accurately determined by NC programme

Please contact us to analyze your machining process and work out an optimized solution.

 

HORN: New Six-Edged Inserts with New Grooving Depth

Six-Edged Inserts with New Grooving Depth

With the 66T grooving system, Horn is expanding its tool portfolio in the area of six-edged indexable inserts. With six cutting edges, the insert offers an attractive price per cutting edge. The maximum grooving depth is 9.5 mm (0.374″). This is around 4 mm (0.157″) more than the sister system, 64T. Depending on the application, Horn offers inserts with two geometries and a version without geometry. The available geometries ensure reliable chip removal during machining. The IG65 carbide grade is used for machining stainless materials and difficult-to-cut materials. For general steels, Horn recommends the EG55 carbide grade for the 66T system.

The available cutting widths are 2.5 mm (0.098″) and 3 mm (0.118″). The corner radius is 0.2 mm (0.008″). The 1A geometry is suitable for pure groove turning operations, while the DL geometry is suitable for longitudinal turning in addition to grooving. The DL geometry is therefore also available with a corner radius of 0.4 mm (0.016″). The effective chip control of the chip breaking geometries ensures high surface quality on the groove flanks and the straight main cutting edge produces a cleanly finished base. Designed as neutral grooving inserts, they can be clamped in square shanks with internal cooling on both the left and the right side. Holder dimensions are 20 x 20 mm (0.787 x 0.787″) and 25 x 25 mm (0.984 x 0.984″). A clamping screw fixes the grooving insert precisely and securely in the central insert seat. Horn also offers type 220 clamping cassettes for the modular holder system.

HORN at EMO Hannover 2025

HORN at EMO Hannover 2025 (Hall 5, Stand A32)

Since its inception in 1975, EMO has stood worldwide for innovation, internationality, inspiration and the future of metalworking. In 2025, the exhibition will celebrate its 50th anniversary.

As the world’s leading trade fair for production technology, EMO in Hanover offers a unique platform every two to four years under the motto “Innovate Manufacturing” to make international contacts, open up new business opportunities and gain a comprehensive overview of the industry’s worldwide offerings. The last event in 2023 attracted over 92,000 visitors from 140 countries and around 1,850 exhibitors to this industry highlight.

HORN will be showcasing pure machining on 580 square meters in Hanover. Four machines, four exciting components, a wide variety of tool solutions – live in action and cutting chips throughout the entire exhibition. The following will be on display: the DMU65mB from DMG, an Index G220, a Citizen L12 and a GROB G150. In addition, we will be displaying numerous exhibits and tool solutions and presenting our innovations for 2025.

Markus Horn, Managing Director of Paul Horn GmbH: “I am convinced that a visit to EMO will be worthwhile for our customers and interested parties – we will be presenting machining at the highest level. On the four machines, we will be demonstrating the topics of finishing, machining lead-free materials, aluminium machining with rotating PCD tools and technology components with ” ” numerous turning operations. Horn continues: “In my opinion, the best results are achieved through dialogue, and EMO offers the ideal platform for this. Visit us in Hall 5, Stand A32.”

New Mini System with Sintered I Geometry

In addition to live machining, Horn will be presenting numerous innovations. Among them is the Mini system with sintered chip breaker geometry, which was unveiled for the first time at the Horn Technology Days in May 2025. The sintered I-geometry is particularly aimed at machining materials with poor chip formation properties. It is suitable for copy turning, longitudinal turning, back turning and facing. Especially with shallow depths of cut in steel and stainless steels, the tool system with this geometry demonstrates its strengths in chip control. It leads to higher process stability and longer tool life. When developing the I-geometry, HORN also took into account the machining of lead-free materials. As these materials will pose a challenge in the future due to their inferior chip formation, the tool manufacturer offers inserts with small corner radii starting from 0.05 mm for small lateral infeeds. Corner radii from 0.05 mm to 0.2 mm are available from stock.

HORN: Technology Day 2025

Two open plants, Six Specialist Presentations and over 60 Exhibits:  HORN Technology Days 2025

From 14th to 16th May 2025, Paul Horn GmbH opened its doors for the ninth time to around 3,300 visitors from a total of 33 countries.

Mastering processes in theory and practice: Visitors were able to expand their knowledge during six specialist presentations combined with live machining. Topics included machining aluminium with PCD tools, machining small bores, grooving, parting off, form grooving and turn-milling as a solution for long-chipping materials. Those who wanted to delve even deeper were able to take part in moderated demonstrations in three live production areas. In addition, two presentations focused on Horn’s internal product configuration and the integration of AI. Visitors were able to see, test and experience these on-site.

From a pasta machine and a braking system for an intercity express train to the combustion chamber of an Ariane engine: throughout the production area, the tool manufacturer displayed over 60 impressive exhibits that had been machined using Horn tools. In all, 20 demo components were machined live on various machines. In addition to extensive freedom of movement around the open production facilities in the two plants at the Tübingen site, visitors were given an insight into the process from powder to the finished blank for an insert at a special exhibition organized by HORN Hartstoffe GmbH.

Two final presentations from the TransKI and MetaLearn projects funded by the Federal Ministry of Education and Research (BMBF) also took place as part of the Horn Technology Days. A total of 50 partner companies rounded off the event.

 

 

 

 

Markus Horn, Managing Director of Paul Horn GmbH, summarizes: “The Horn Technology Days 2025 were a complete success. The feedback from our guests not only confirmed this, but more than exceeded our expectations. We are already looking forward to 2027, when it will be time to welcome visitors again to the Horn Technology Days.”

Horn Technology Days is an Open House Event where customers from all over the world are invited to Tubingen to see for themselves what lies behind the scenes.  Please contact us if you would like to be a part of the next Technology Days.