In order to cater to this demand, Mitsubishi Materials started the product development project with the theme of difficult-to-cut wood processing.However, the processing of hard-to-cut materials And a wide range of components, tool performance required are also very different, therefore, I hope the development of the standard can meet as many conditions as possible.In this iteration, including understanding of customer needs sales and materials development department , The main objective was discussed first, and finally the aviation industry was set as the main objective of this project, so we started to develop the most suitable blade for the processing of superalloy and titanium alloy.
In the actual development process, did encounter some problems.Machine and heat-resistant alloys and other hard-to-cut material when the cutting edge defect structure and cutting 'cast iron, steel' and other common metallic materials are greatly different. The largest The theme is to effectively inhibit the cutting edge of the defect, to achieve long-life.
Mitsubishi - Hard Turning Turning MPMT90 series
First of all, the development team conducted a detailed analysis of the past products.During the processing of hardwood material, the damage will be different due to subtle differences in conditions and performance evaluation is extremely difficult.Therefore, in an experiment, as much as possible to increase the parameters, use More analyzes than usual were used for analysis, and in this analysis, it was found that the most effective suppression of the defect at the boundary of the cutting edge was the size of the rake and tip honing.
Large-angle, small-tip honing samples can suppress tool-life shortening as expected at the initial stage of machining. If it is easier to predict the tool life accurately based on initial tool damage, In order to achieve long life, it is necessary to continue to suppress the boundary part of the defect until the end of the process, in addition, we must ensure that the product can be stable under various processing conditions performance.Therefore, repeated experiments Only to find out the best blade.
It can be said that the experiment is a continuous attempt and failure.In order to analyze the size of the rake angle and the tip honing and accelerate the development speed, it takes more effort than ever before in trial production, shape measurement, cutting evaluation and analysis. After a sample has been completed in the precision measurement chamber for a total of 3 consecutive days of the development of high efficiency, of course, can not be separated from the computer, but in the final analysis the key lies in the developer's practice of down-to-earth duplication of work eventually found suitable for each rake Tip honing the best size.
After experiencing various trial and error, we finally designed three kinds of blades to meet the market demand.According to the processing scene, at the front angle of 20 ° chip processing excellent LS blade, the front angle of 15 ° against the border of the lack of strong MS blade and Risers are selected from RS blades that are resistant to 10 ° in the rake angle. The sharpness of the blade has been highly evaluated since it was released. In addition, there are many other uses besides the superalloy and the high versatility is well recognized. Finally paid no effort.
In terms of material development, Al content greatly exceeds the past, higher hardness and can be stably ensure high hardness, abrasion resistance, resistance to a substantial increase in cladding resistance compared with the previous product, performance increased by more than 25% Combination of blade shapes further improves the performance of hard-to-cut inserts.
In fact, the design also incorporates the developer's ingenuity in the pursuit of chip flow at the same time, with the wing as the prototype of the appearance of the design hope that the product reflects a sense of high performance and super heat Alloy blade with the appearance of the product for the turning ISO blade series, with a variety of shapes available. Want to maintain the basic performance of the prototype at the same time, continue to expand the inscribed circle, vertex, R angle size However, it is feared that if it continues to take time in this area, the basic shape design will not be easy to complete but the sale of the product will be postponed. Therefore, a system designed in the past 1/3 of a year has been established so that the product can be released as soon as possible.
Although the product name is hard-to-cut, it is well received in the use of stainless steel and some steel products, but its versatility is worth a try. In the future, Mitsubishi Materials will continue to develop new materials and technologies for its customers Higher quality and higher performance products.