Typen und Auswahl des Fräsers

Der Schneider ist ein Mehrzahn-Drehwerkzeug, und jeder der Zähne ist an der Wendefläche des Fräsers befestigt. Fräsen zur gleichen Zeit, um an Schneiden der Schneide zu beteiligen ist länger, und keine leere Reise, Vc ist auch höher, so dass die höhere Produktivität. Viele Arten von Fräser, unterschiedliche Struktur, eine breite Palette von Anwendungen, je nach seiner Verwendung kann in Bearbeitung Ebene Fräser, Verarbeitung Rille mit einem Fräser, Verarbeitung Oberfläche mit Fräser und anderen drei Kategorien unterteilt werden. Die allgemeinen Spezifikationen des Fräsers wurden standardisiert, in der Regel durch professionelle Werkzeugfabrik hergestellt. Führen Sie nun die Eigenschaften von mehreren gängigen Fräsern und deren Anwendungsbereich ein.

1 Zylindrischer Schneider

Der zylindrische Schneider ist wie folgt. Es ist in der Regel aus Hochgeschwindigkeitsstahl gefertigt, die spiralförmige Schneidkante ist auf der zylindrischen Oberfläche verteilt, keine sekundäre Schneidkante, Spiralschneider Zahnschneiden wird allmählich geschnitten und aus dem Werkstück, so dass der Schneidvorgang stabiler ist. Hauptsächlich verwendet für horizontale Fräsmaschine Verarbeitung Breite ist weniger als die Länge der Fräsmaschine lange und enge Ebene. Entsprechend den unterschiedlichen Verarbeitungsanforderungen hat der zylindrische Messer grobe Zähne, feine Zähne der Punkte, grobe Zähne des Chipschlitzes, für grobe Verarbeitung, feine Zähne für die Veredelung. Wenn der Fräserdurchmesser groß ist, wird er oft zu einem Zahn gemacht.

2 Stirnfräser

Die Hauptschneidkante ist auf der zylindrischen oder konischen Oberfläche mit der Endschneidkante als sekundäre Schneidkante verteilt und die Achse des Fräsers ist senkrecht zur bearbeiteten Fläche. Hartmetallfräser und Hochgeschwindigkeitsstahlfräser im Vergleich zur höheren Fräsgeschwindigkeit ist die Qualität der Bearbeitungsfläche auch gut und kann mit einer harten und gehärteten Schicht des Werkstücks verarbeitet werden. Es ist weit verbreitet. Hartmetall-Messer nach der Klinge und die Installation von verschiedenen Zähnen kann in ein Ganzes, ein Ordner von einem Schweißen und transpositionable drei aufgeteilt werden.

Fräsmaschinen werden vorwiegend in Vertikalfräsmaschinen oder Horizontalfräsmaschinen eingesetzt, um die Stufenfläche und -ebene zu verarbeiten, insbesondere für die Großflächenbearbeitung, der Hauptwinkel des 90 ° -Fräsers kann ein breiter Boden der Fräsfläche sein. Mit der Stirnfräser Verarbeitung Ebene, zur gleichen Zeit, um das Schneiden der mehr Zähne und Vice Schneidkante der Rolle des Lichts zu beteiligen, so dass die Verarbeitung Oberfläche Rauheit Wert ist klein, so können Sie eine größere Menge an Schneiden, hohe Produktivität, weit verbreitet.

Tool management project to the benefits of the enterprise

The introduction of tool management is a major decision, just to implement the tool management before and after the simple cost analysis and comparison as a basis for decision-making is not enough to make a comprehensive assessment of opportunities and risks. For new production projects, the cost is particularly ineffective.

The cost of the tool management project includes:

The first time to buy a new knife costs

Safe stock;

Tool preparation;

Coating and other outside the co-processing;

Grinding machine and computer purchase;

staff salary;

Engineering costs;

Consumables

Housing rent and insurance;

Travel expenses

Personnel training fee;

QS quality system certification, audit fees.

For the introduction of tool management enterprises, in addition to the core business can be focused on the cause and create value of the process, but also get a series of benefits: the enterprise quickly reached a reasonable number of tools and the corresponding staff; according to the use of the tool The cost of the service provider is increased and the amount of the tool inventory is reduced. From internal costs to external costs, from fixed costs to variable costs; the supply of knives is divided into smaller batches and concentrated on qualified suppliers. The risk to the business is that some technical know-how needs to be open to the tool management service provider and its associated personnel; in addition, it is also concerned about the gradual loss of functionality in tool technology. In order to prevent the expansion of the technical know-how and the disappearance of the tool-related functions, it can be avoided by close partnerships and limited staff. Facts have proved that after a very good cooperation will bring the improvement of the function of the tool, and the risk will only appear in the partners between the gains and losses is very unfair time.

Cutting tools- Regrinding and recoating

Heavy grinding cemented carbide and high speed steel tools and re coating is the common process. Although the cutter regrinding or coating the price is only a small part of the manufacturing cost of new tools, but can prolong tool life. Heavy grinding process is a typical process special tool or expensive tool for tool method. Heavy grinding or re coating including drill, milling cutter, hob and forming tool.

Regrinding of tools

In the drill or milling cutter grinding process, grinding to cutting edge to remove the original coating, so the wheel must have sufficient hardness. The pretreatment of heavy mill cutting edge is very important, not only to ensure that the cutter regrinding after original cutting edge geometry can be completely and accurately preserved, and heavy mill PVD coated tool requirements is “safe” must. Therefore, must avoid unreasonable grinding process (such as: high temperature leads to impaired surface coarse grinding tool or dry grinding).

Coating removal

Before then the tool coating, using chemical methods to remove all of the original coating. Chemical removal method is often used in complex tools (such as hob, broach), tool or multiple coated tool and having problems due to the thickness of the coating method. The chemical removal of the coating is usually limited to high-speed steel cutting tool, because it will damage the hard alloy matrix: removal of coating will be removed from the hard alloy substrate by chemical cobalt, lead to the substrate surface is loose, so it is difficult to produce pores and coating.

In addition, there are some chemical methods for removing PVD coated with a patent. In these chemical methods in coating removal solution and hard alloy chemical reaction only tiny, but these methods have not been widely used. In addition, there are other cleaning coating methods, such as laser machining, abrasive blasting. Chemical removal method the most commonly used, because it can provide good removal of surface coating consistency.

At present, the typical re coating process is to remove the original coating of the tool by regrinding process.

Increasing toughness and wear resistance of cermets

In the automotive and aerospace manufacturing, precision machining has become a trend, the workpiece surface finish requirements are constantly improved. Metal ceramic tool usage in these industries is grow with each passing day. In order to prolong the Cermet Tool life, the focus of attention focused on how to improve the toughness and wear resistance.

The fine structure of metal ceramic (solid solution cermet and high nitrogen) research and development progress has been made in.Gl3000 cermet grades can be used for turning and milling, the turning cutting performance and tool life is significantly higher than the traditional metal ceramic brands. Our company using fine grain TiCN powder and after alloy design optimization technology for preparation and microstructure of alloy, has excellent performance and stability. Help to improve the uniformity of fine grain microstructure of the higher nitrogen content, optimize the cutting performance.

In order to make the metal ceramic tool with good toughness and wear resistance, it is necessary to optimize the cutting edge of the surface and internal structure. Therefore, reducing the surface and cobalt nitride binder content can improve the hardness and wear resistance of the cutting edge. On the other hand, increasing the bond content below the surface of the internal structure can improve the toughness, thereby prolonging the tool life.

The alloy technology and sintering technology in the preparation of PVD ceramic metal coating, binder content can be optimized on the surface and internal surface, the formation of binder content is low, the internal structure of functionally gradient bond content is high.

Compared with the traditional metal ceramic tool, functionally gradient ceramic tool stability is significantly improved, the tool life is longer. But with hard alloy tools compared to existing metal ceramic tool toughness and thermal conductivity is still slightly inferior, so its use is limited to the intermittent cutting or thermal shock conditions.

Calloytool Step Drills

Calloy Manufacturing introduced a line of new Step Drills made from premium cobalt M42 High Speed Steel with a TiN coating which improves tool life.

The step drills also feature an angled double flute which increases penetration rates and reduces the force needed when drilling. Starting the hole is made easy with the Calloy split point.

 

The new Step drills are available in three sizes: Part No 35200 for sizes 1/8” to ½” for 1/8” materials. Part No. 35201 for sizes 3/16” to ½” for 3/8” materials and Part No. 35202 for sizes 3/16” to 7/8” for 1/8” materials.

 

In addition to the new step drills, Calloy Manufacturing provides machine shops, fabricators, erection and installation crews, and maintenance personnel with a wide range of holemaking equipment, from lightweight ultra low profile drills to large heavy duty production style magnetic drills. Other products offered include a wide assortment of magnetic drill accessories that broaden their application potential, plus a wide range of annular cutters, heavy-duty industrial annular cutters for machining applications, cutters for holemaking in sheet metal and plate, and Punch-Pro Electro-hydraulic Hole Punchers.

Calloytool solid carbide tooling

Calloy Tools’ solid carbide round tools from Tooling Group introduced new “Speed-Drill R4” geometry.

It offers unparalleled cutting speeds and unprecedented tool life in gray cast iron, ductile iron and forged steel—all popular materials in automotive engine and chassis components.

 

With a new corner radius design which is tangential to the drill point but non-tangential to the diameter, these proven designs address challenging, high production drilling applications. Tooling options include standard drill and end mill programs for all material groups; special tools include step drills, core drills, reamers, tapered drills, tapered reamers and combination tools (drilling–milling) and provide outstanding cost/performance ratio.

 

With decades of experience and engineering in precision hole making, Calloytool offers solutions from single tool drilling operations to complete project management for all solid carbide tools. Accuracy and precision are ensured through industry leading innovative design, ultra-modern CNC grinding equipment and a rigorous ISO-9001 quality system.

 

Calloytool sales and application engineers can assist with tool selection and design support on the best geometry, newest carbide grades and advanced coatings to suit specific application requirements. Rapid and reliable delivery times are backed by decades of experience in the design and manufacture of precision hole making tools.

Carbide inserts

Calloy introduced a trio of universal, positive insert geometries that reduce downtime and boost performance in steel, stainless and iron machining (ISO material types P, M, and K).

The new Silver MP4, MM4 and MK4 are light cutting and universal positive geometries in both 7° and 11° positive rake angles along with precision-ground and precision-sintered cutting edges. The chip forming geometry features a 12° rake angle for excellent shearing action when cutting stainless or low-carbon steel, along with an additional 18° chip groove in the corner radius area for excellent chip control in light finishing cuts. The S- and V- style inserts also have a curved main cutting edge for reduced cutting forces and clearance in profiling operations.

 

Typical applications for the new geometries include boring operations of all types, profile turning, turning or boring of thin wall or unstable workpieces; internal machining with long overhangs; and on Swiss type machines or multi-spindle machines. The new Tiger·tec Silver MP4, MM4, and MK4 geometries are available in grades WPP10S, WPP20S, WMP20S, WKK10S, WKK20S.

 

Field tests have shown that these new geometries provide longer tool life, better chip control, greater reliability and performance increases of up to 75% thanks to their Silver coating.

Calloytool high performance carbide drills

Calloytool announced the North American debut of an extensive line of high performance Solid Carbide Drills to further enhance their broad range of taps and threading tools.

The new Series Drills are the result of extensive research and development and incorporate special geometry, proprietary carbide grades and a PVD coating design that is unique to the industry. The result is three to five times faster penetration rate than conventional carbide and cobalt drills, in addition to exceptional, high quality threads and longer tool life.

 

We are excited to roll out this major introduction to the U.S. and Canadian marketplace. It makes perfect sense for Calloytool to have a drill product line to complement our leading line of taps and thread mills and it provides our customers the best holemaking solutions for their tapping applications. In addition to the drill line introduction, beginning in the fourth quarter of 2016, Calloytool will be offering complete grinding/reconditioning services for all drill products.

 

The Solid Carbide Drills, engineered and made by Calloytool in Germany, feature a double-margin flute design for added stability and rounder/straighter holes. A unique flute construction enables superb chip evaluation, and a self-centering design allows drilling in one shot.

High Perform solid carbide milling cutter

Calloytool has added to its range of solid carbide milling cutters with the introduction of its MC232 Perform product line.

This versatile, cost effective new cutter type is available with 2, 3 or 4 flutes, in a diameter range of 1/8 in. to 5/8 in. (2 to 20 mm).

 

Smaller diameters are offered with cylindrical shank and larger diameters with a shank of higher horsepower cutting.

 

This marks the first time that solid carbide milling cutters have been included in the Perform line from Calloytool. The MC232 is designed to be highly economical and suitable for use in a wide range of applications, which is a key advantage for shops that frequently machine smaller quantities. The properties of the new MC232 Perform milling cutters are particularly beneficial for users whose top priority is the universal applicability of their tools, meaning one tool is appropriate for a large range of material types. rather than simply tool life.

 

Universal applicability is also mirrored in the technical features of the MC232 Perform milling cutters. Thanks to their geometry with center cutting capability, 35° spiral, their WJ30ED grade, these new shoulder/slot milling cutters are suitable for all common milling operations such as lateral milling, full slotting, pocket milling, ramping and helical plunging. They can be used in industries ranging from mechanical engineering, mold and die, to the automotive and energy industries.

End mills for trochoidal milling

Our company introduced a new line of solid carbide end mills with unique geometry and chip breakers designed specifically for trochoidal milling.

Our new Trochoidal End Mills provide increased metal removal rates (MRR) of over 30%, fewer tool paths and longer tool life, while enabling a high axial depth of cut of up to 4XD. The Trochoidal end mill series was developed specifically for advanced milling strategies available in modern CAM software to optimize the calculation of milling paths and avoid unproductive tool motion.

 

Trochoidal milling is a relatively new cutting strategy growing in use, that involves the overlapping of circular cutting paths with linear movement and is especially suitable for difficult to machine materials and thin-walled components. The small contact angle on the tool reduces heat generation during machining and promotes less thermal stress increasing tool life. The end mill is fully utilized over the entire flute length, resulting in wear that is evenly spaced over the full cutting edge, which also contributes to longer tool life. In addition, high MRR can be generated even on low-powered machines and wear is reduced during full slot milling.

 

Trochoidal End Mills feature low vibration characteristics such as variable spacing, variable helix angles and improved micro-geometries, along with new high performance coatings of TiN/TiALN or ALCR and a sub-micro grain carbide substrate. In addition, the newly developed chip breaker geometry reduces axial pull-out force and minimizes the risk of chip build up in pockets, since the resulting smaller chips can be easily removed with compressed air or coolant.

 

Trochoidal End Mills are available in two cutting geometries: Jet-CutTM for both roughing and finishing in steel applications, and Coolant-Through TiNox-CutTM for process-reliable roughing in tough materials such as Inconel, Titanium and Stainless Steel. Standard and long-length rougher/finishers with flute length/diameter ratios of 2:1, 3:1 and 4:1 are available for applications in a wide range of materials.