Following Shanghai, Wuxi, Wuhu, Tianjin, Beijing and CIMT, MAPAL's new product technology conference came to Dalian, Shenyang, Changchun and Harbin. For this trip to the northeast of MAPAL, MAPAL puts drill products into the main product line.
The industry's understanding of MAPAL products has always been reflected in precision boring tools and composite tools. As a leader in the field of precision machining of holes, Marpa has always been at the forefront of the development of drilling tools and continues to break through the tradition in application. At present, Marpa can not only provide users with standard drills of various specifications, but also can exert its own technical advantages in the non-standard field to customize various high-performance non-standard drills for users.
An example of a successful and innovative process, the GIGA drill bit, the high-precision solid carbide four-slot drill bit, has excellent performance in the processing of steel, cast iron and aluminum alloy materials. The cutting, guiding and supporting tasks are well integrated on one tool. This is different from the traditional additional chamfering drill. The four asymmetric cutting edges are both cutting edges and support edges, even if the Chinese metalworking online copyright is doubled. Even higher feeds ensure smooth cutting, which is the most efficient bit on the market, reflecting the development philosophy of Marpa.
玛帕GIGA-drill drill
In the four belts of the GIGA drill bit, each of the two cutting edges and their ribs bears the task of drilling and reaming. Through the configuration of the two sets of cutting edges and the corresponding grinding, the drill has high drilling accuracy (up to IT8), the surface roughness is optimal to Ra 0.8Øm, the concentricity is less than 4Øm, and it has a high Dimensional stability, the same effect as described above can be obtained even if a discontinuous hole is machined. In addition, MXF coatings are specially developed for drilling to ensure normal cutting in high temperature and harsh environments. Practice has shown that such drills have a very long life and very low wear.
The processing of pre-cast holes, cross-holes, inclined holes, and broken-hole parts has always been a problem that has been plagued. Traditional Drills China Metalworking Online Copyright not only cannot guarantee stable quality requirements, but also cannot improve efficiency. The GIGA drill bit solves these problems well. It not only corrects the positional deviation of the pre-hole, but also ensures good straightness of the hole. It can be said that the GIGA drill bit is a drill bit that combines the processing content of several conventional tools.
The following is a brief introduction to the application of this drill bit, from which you can understand its excellent performance.
·Processing Example 1: The pre-cast spark plug hole of the workpiece V8/V12 cylinder head is machined with a GIGA drill having a diameter of Ø24 mm and a total length of 203 mm. The length of the hole is 120 mm, and the initial portion of the 10 mm is on the inclined surface of 5° to 7°. The cutting parameters used are shown in (Table 1). The GIGA drill has a machining life of up to 9,000 holes. For the first time, the trouble-free machining of the spark plug hole has been achieved, which has caused the occurrence of strong chattering or even the breaking of the drill bit in the process.
·Processing example 2: This is a successful case from the original processing method to the GIGA drill bit to process the steering gear frame (material is HT250, see Table 2 for details).
The improved results mean more than 30,000 euros a year!
• Processing Example 3: The connection bolt holes for the 6-valve and 4-valve cylinder heads were machined using a GIGA drill. Workpiece material HT250, hole diameter Ø13mm, hole depth 40mm, using SK40 tool holder. Originally used ordinary double-edged belt bit processing, speed 2450r / min (Vc = 100m / min), feed 650mm / min, processing a hole in a 4-port cylinder head requires about 70 seconds, processing a 6 China metal processing online copyright The holes in all valve cylinder heads take 95 seconds and the drill life is 1250 holes (cut length 50m). With the GIGA drill bit, the machining time of the 4-valve cylinder head hole is shortened to 36 seconds, and the machining time of the 6-valve cylinder head hole is shortened to 52 seconds, which saves 500 hours of machining time by average production. The GIGA drill has a speed of 2000r/min, a feed of 1200mm/min, and a drill life of 140m (3,500 holes), which is almost three times that of a conventional double-edged drill.
Corresponding to the GIGA drill bit, China Metalworking Online Copyright Precision Manufacturing is the price, which is what users want to know. Obviously, the choice of drill bit can not only consider the price factor, because the GIGA drill bit is higher than the ordinary drill bit, whether it is the tool manufacturing cost or the grinding cost, which is also the place where the user needs to balance. However, the cost of online copyrighted parts for single China metal processing using GIGA drills is clearly a lot more cost-effective. Over the years, the reduction in production costs through increased processing efficiency has been recognized by users, so comparing the total processing costs required for total part production, the cost savings of applying GIGA drills is considerable.
As the most cutting process in machining, the current technological advancement of drilling tools lags far behind that of turning, milling and boring, which seriously restricts the overall improvement of high-efficiency machining in modern production. At present, the technical progress of the drill bit is mainly reflected in material improvement and coating application, such as ultra-fine particle cemented carbide with grain size less than 0.5Øm, PCD China Metalworking Online Copyright Materials, etc. Common coatings include TiN, TiAlN, CrN. , DLC, etc., but the drill bit has not made a big breakthrough in the structural form. The successful development and application of the GIGA drill bit demonstrates that efficient machining of the drill can be achieved. In addition, Marpa also developed 6- and 8-slot drill-drilling drills with hole tolerances up to IT7, deep-hole twist drills with 15~30 diameters, etc. This is the responsibility of Marpa for technological advancement in the future. We will continue to develop and introduce better tools to China.
About Mapa
As a medium-sized family-owned company, MAPAL Praezisionswerkzeuge Dr. Kress KG has been a leader in the metalworking industry for decades as a supplier of high-precision tools. From guide bar tools, diamond tools, HSK clamping systems, unfolding tools to drill bits, high-performance reamer, general ISO standard tools, tool setting instruments and PCBN tools, comprehensive tool service (CTS), etc. Constant innovation is the industry leader. His ability to innovate and develop according to the specific requirements of customers is well known in the industry.
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