Wire Mesh Demister,Wire Mesh Mist Eliminator,Mesh Pad Mist Eliminator,Demister Mesh ANPING COUNTY ANSHENG WIRE MESHES PRODUCT CO.,LTD. , https://www.aswiremesh.com
In various manufacturing industries such as automobiles, medical instruments, aerospace, and general engineering, manufacturers can use various advanced drilling tools, including high drilling rate solid carbide drills, indexable insert drills, and Replaced carbide drill tip drills, and the use of an increasing number of multi-functional drills, etc., for drilling a variety of small holes, deep holes, as well as a complete drilling, chamfering, boring and other processing without the need for secondary Processing.
Tool makers take full advantage of technological advances in tool geometry, substrate materials and surface coatings, continue to introduce new tool variants, expand existing product lines, and custom-design specialized tools to standard supply products.
The advancement of CNC machine tools (especially machining centers), Swiss-type turning centers, and long-bed lathes that can optimize the processing performance of long drills has also enabled the advantages of advanced drilling tools to be fully utilized. The high rigidity of modern processing machines and the ability to deliver large amounts of coolant under high pressure are also critical for drilling operations.
In metal cutting, shortening the processing time is one of the main goals pursued by people. It is no exception for hole machining. In addition, certain industries have high requirements for the accuracy of the holes and also exert additional pressure on the hole machining. For example, the medical and aerospace manufacturing industry has a high requirement for the consistency of the hole jump accuracy and tool life. Manufacturers also face the challenge of machining advanced workpiece materials (such as titanium alloys, Inconel alloys, cobalt-chromium alloys, etc.).
Solid carbide drills are still due to their own high rigidity and other four design features that still work: carbide surface coatings, drill geometry, land width and back taper (usually up to φ25 mm). It is a good processing option. The most effective coating design is a multi-layered PVD coating (top layer is a smooth layer to prevent chip adhesion) and it is combined with a tough carbide substrate with good chipping resistance to make the drill bit more applicable. High feed rates are processed. The bit geometry needs to be designed for each specific workpiece material, including difficult-to-machine materials. The reasonable design of the bit land width can improve the drilling accuracy and drilling ability of the drill bit. The size of the back taper affects the contact surface between the machined hole and the drill, so it must be precisely designed according to different materials to avoid shortening the tool life due to friction.
The Minimal Lubrication (MQL) bit, AGPower long bit, cobalt high speed steel non-internal cooling bit, and TiAlN coated bit developed by the Nachi America Inc. Tool Division have been acquired at the Ford, GM, and Honda automotive plants. Successfully applied, compared with powder metal drills, the number of holes drilled on the crankshaft can be doubled, and the machining cost per piece can be reduced by 50%.
Multi-purpose hole processing tools are extremely valuable because they can shorten the processing time and omit the secondary processing. As a manufacturer of precision rotary tool chucks and other integral fit tool systems, manufacturing engineers at Ingersoll Cutting Tools realized that they combine drilling, chamfering and boring functions into one tool It can achieve the high precision needed to process the shank pull nails. To this end, they have developed a Qwik Twist interchangeable point drill with a variety of functions. The drill is used for drilling, boring and chamfering on the 4000 series alloy steel pull nails (bore diameter φ22.2mm, hole depth 98.3mm), and the machining time can be shortened by more than 7 minutes. Now, the Qwik Twist multi-function drill bit has been included in the Ingersoll hole tooling product line and has a technical team to design and manufacture.
In order to integrate drilling and chamfering functions into a single tool, Sumitomo Electric has developed two processing systems. One is suitable for solid carbide drill bodies; the other is suitable for SMD replaceable hard alloy drill tips. Among them, the SumiChamfer system firmly nests an annular chamfered head on the drill body of the solid carbide drill and then clamps it on the collet chuck for processing. There are 3 types of chamfering rings, which can complete the drilling and chamfering of 4 to 20 mm aperture sizes. This system uses the industry-standard ER series collet chuck. As the processing aperture increases, large-size chucks with larger clamping force are used [ER20 ​​(4mm), ER25 (9.4mm), ER32 (14.0mm) ]. Two SumiChamfer standard inserts are available for machining. One of the ACZ310 brand inserts is suitable for machining all workpiece materials. Sumitomo Electric also developed the SMD sumiChamfer series of chamfered rings for interchangeable point-end SMD drills. It is suitable for standard SMD drills with diameters from 12 to 22.5mm metric or imperial. The SMD chamfering ring uses the standard SumiChamfer type blade. The blade is divided into two types: chipbreaker groove and chipbreaker groove, all adopting ACZ310 grade.
The drill bit with replaceable cemented carbide drill tip has the ability to use a high-speed steel drill to complete a set of hole size machining, which can reduce the number of tools and reduce processing costs. Precision Twist Drill Co. developed Hydra Drill's interchangeable drill-tip internal cooling drills, drilled at depths of 3x and 5x bores, and available in inch and metric sizes, with an aperture size range of 14 ~22.5mm, suitable for drilling off-road equipment, automobiles and other similar parts in the machining center where the main shaft can be used for coolant. The drill is designed for high-volume machining and can replace solid carbide drills. Each size of high-speed steel drill can be equipped with up to 5 different sizes of drill tips. Each bit can cover an aperture range of about 1.5mm. . Hydra Drill drill bit can be easily changed without removing the drill body from the spindle. It can process a variety of workpiece materials, including cast iron, steel, stainless steel, nickel-base alloy, titanium alloy and so on.
MA Ford Mfg. Co. Inc. recognizes the increasing importance of multi-tasking capabilities for carbide drills by establishing dedicated tooling divisions that are designed to develop drilling, boring, and chamfering functions. One multifunctional drill. This type of drill has a wide range of uses, especially for high-efficiency machining of automotive parts. The diameter of the drill is in the range of 6.4 to 12.7 mm, and the maximum length of the chip flutes is 254 mm. Deep holes with a hole depth of 15 to 20 times can be drilled on the crankshaft.
In order to meet the demand for different types of drill bits and specifications for processing a wide range of workpiece materials, M.A. Ford also introduced a new series of standard drills. This series of drills can process various workpiece materials ranging from mild steel to nickel-base alloys, Inconel alloys and titanium alloys. For different processing objects, the bit design uses different chip flute taper, chisel edge and back cone angle, and the surface coating matching the processing is selected, thereby improving the drilling speed, production efficiency and tool life.
BIG Kaiser Precision Tooling Inc. has introduced two new Sphinx solid carbide drills (with a 6-deep hole depth). Among them, Phoenix drills are used to process small holes with an aperture of 1 to 4 mm, and Quadro 15 Plus drills are used to machine holes with an aperture of 4 to 20 mm. Phoenix drills are designed for high-speed, high-feed-rate drilling of steel, stainless steel, cast iron and non-ferrous materials. They feature internal cooling for drills 2.5mm in diameter and the Futura Nano Top from Balzers. TiAlN coating to improve the drill's wear resistance and chip removal capability. The Quadro 15 Plus drill features 6-land special drill tip geometry, ultra-fine grained carbide and 15° helix angles. It is suitable for machining long-chipping materials such as steel and cast iron. The drilling accuracy can reach H7. Therefore, no further finishing is required.
The Picco-MF multipurpose indexable tool developed by Iscar Metals Inc. combines precision hole drilling functions with surface turning, cylindrical turning and bore turning/boring functions. The DR-MF series of cutters are designed for machining miniature components used in the automotive, tooling, aerospace, medical and general engineering industries on Swiss-type machines. They feature two cutting edges for drilling and turning operations, respectively. . The large helix angle cutting edge is designed to minimize cutting forces and achieve optimum chip control at low feed rates. The XCMT inserts use the IC908 grade submicron cemented carbide substrate and TiAlN multilayer coating. The tool can be used for both right-handed and left-handed cutting. In order to enhance the wear resistance, reduce the surface friction to improve the chip removal performance and prevent clogging, the blade body is coated with a hardness of HRC60 coating.
The Exocarb-Max Ultra Long Drill (FTO-GDXL) developed by OSG Tap & Die Inc. for drilling deep holes can drill a hole depth of 30 times at a time, eliminating the need for stage drilling and processing time. It can be reduced by 15 times compared with gun drilling. The drill adopts internal cooling method and TiAlN coating, and the drill diameter range is 2.5 to 20mm.
Small holes and deep hole drilling have always been challenging machining issues. Mitsubishi Materials USA Corp. supplies MSE (Mini Star) solid carbide drills with diameters ranging from 0.1 to 0.99 mm (size increment 0.01 mm). This drill is specifically designed for drilling precision tiny holes in metal parts such as medical parts on Swiss-type machines. Mitsubishi Materials also added new deep-hole drilling capabilities to its small-hole drills for 1 to 3 mm hole diameter machining. The MWS internal cooling drill features a long helical groove and a wave-shaped cutting edge, which allows it to increase its chip-breaking and chip-removing capabilities when drilling deep bores up to 10 times the hole diameter. The drill can process steel, stainless steel, Alloy steel, nickel-base alloy and other workpiece materials. Mitsubishi Materials Inc.'s newly introduced standard solid carbide drill bit series also uses MWS waveform cutting edges. A drill with a diameter of 3 to 5 mm can drill deep holes with a 30-times diameter.
Kennametal Inc.'s HTS drilling system features drilling large diameter deep holes. The HTS drilling system is available in diameters ranging from 38 to 269 mm, drilling depths of 1.8 to 2.4 m (8x aperture), and custom drills up to 381 mm in diameter. This modular drilling system has a set of blades mounted on the cutting head and can be adjusted within the machining diameter range. The drilling system can process all kinds of workpiece materials except special hard materials, including steel, stainless steel, gray cast iron, ductile iron, titanium alloy, Inconel alloy and so on. Examples of its application include: drilling large diameter deep holes with a diameter of 305 mm and hole depth of 1.8-2.4 m on rolls of steel manufacturing paper; drilling holes of 101.6 mm diameter and 0.61 m depth on K-Monel cast iron material , Then the workpiece is indexed 180° and then drilled again. Finally, two holes with a depth of 1.22m are machined. To perform this kind of deep hole drilling, the machine tool is required to have a high rigidity, and a large amount of coolant should be added to help discharge a large amount of chips generated by the processing.
The CoroDrill 805 modular indexable drill developed by Sandvik Coromant Co. uses a CoroDrill 800 drill with excellent chip removal and internal cooling. CoroDrill 805 drills are designed to drill deep holes in conventional machine tools such as machining centers, lathes and car-milling machines without having to move the workpiece to a dedicated deep hole drilling machine for machining. The drill has a machining diameter ranging from 25 to 65 mm, a hole depth of 13 times the hole diameter, and a machining surface roughness Ra of 32 μm.
Walter Inc.'s Xtra-tec B401x series drills have been continuously expanded. There are now 60 new drill diameter specifications, 2 types of tool materials and various geometries designed for machining steel, cast iron and stainless steel. type. The series of drills are 3, 5 and 7 times the bore length respectively. Its drilling feed rate can be double that of conventional indexable insert drills, and the dimensional precision and surface finish of the machined holes are very high. The B401x series features a fully hardened body and a nickel-based protective coating to reduce friction and erosion with the chips. The diameter of the drill is in the range of 13 to 31 mm. The drill design adopts a positive blade shape and a spiral groove similar to a high-speed steel drill bit.
It is easy to imagine drilling a round hole with a round drill bit. However, in some very difficult processing situations, it is necessary to use a square drill to drill round holes. The square drill is mainly used to remove the high-speed steel cone that breaks in the hole. The square-shaped Omegadrill bit developed by T3 Enterprises Inc. uses a square slot design to provide the required rigidity and strength for drills under extreme drilling conditions. The external square flutes of the drill can enhance the rigidity of the cross section of the drill so that it can drill through the core of the tap. The chip flutes remaining in the hole after drilling can be easily broken by tools such as a scribing needle or a needle. Remove it. Omegadrill drills are made of hard alloys and use negative point geometry to drill high hardness materials up to HRC70. Other uses of the drill bit include drilling to remove twist drill bits, pins, and screw extractors that are broken in the holes. It can process a variety of high-hard materials such as stellite, chilled cast iron, hardened steel, and even granite.
In order to meet the needs of users to increase production efficiency, tool makers are constantly innovating the design and manufacturing strategies of various drilling tools.