Abstract:
PROBLEM TO BE SOLVED: To provide a lathe-turning insert suitable for machining an exceptionally small hole, and a turning tool provided with the same. SOLUTION: The lathe-turning insert (2) is indexable while having a polygonal basic form. The lathe-turning insert is provided with an upper face (13) and a bottom face (14) arranged oppositely to each other while a main flank face (19) extended adjacently to a main cutting blade (16) is located between them. The main cutting blades are brought close to each other at a corner (17) or at a corner having a corner angle of between minimum 55° and maximum 80°. An auxiliary cutting blade (18) connected to an auxiliary flank face (20) is formed between each pair of the main cutting blades. The respective flank faces (19, 20) form a clearance angle with respect to a virtual reference face vertical to the upper face (13) of the lathe-turning insert. The lathe-turning insert is characterized in that a clearance angle of the auxiliary flank face (20) is larger than that of the main flank face (19) by at least one degree. In this way, it allows inner diameter turning of the exceptionally small hole, that is, a hole having a diameter of 6-12 mm. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a tool and a cutting insert for chip removal machining such as milling, turning, or the like of cutting. SOLUTION: The cutting insert is equipped with a main cutting edge (38) removing the chip separating from the center (C3) of the cutting insert, and a flank (37) extending in the boundary (44) from the main edge (38) to the under surface as a connection face (36). The connection face includes a narrow engaging means (42), for example, a ridge (42). The engaging means (42) is disposed nearer to the boundary (44) than the center (C3) of the cutting insert, and includes a side surface (47) having a purpose to transmit a cutting force in the crossing direction to the extending direction of the length of the engaging means. The ridge (42) is the only engaging means acting in the inside of an imaginary triangle between the center (C3) of the cutting insert and opposite ends of the transition (44), and the side surface (47) has a cross section-wise convex shape. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cutting tool insert composed of a composite comprising a cBN phase, and a binder phase comprising a titanium carbonitride phase and a TiB 2 phase, which can be used for machining of hardened steel, hot and cold working tool steel, forged steel, case hardened steel, high speed steel and ductile gray cast iron. SOLUTION: In an XRD pattern from the composite using CuKa-radiation, a peak height ratio of the strongest (101) TiB 2 peak and the strongest cBN (111) peak is less than 0.06, the (220) peak from the titanium carbonitride phase in the XRD-pattern intersects both vertical lines of PDF lines of TiC (PDF32-1383) and TiN (PDF38-1420) and the lowest intersected point height is at least 0.15 of the maximum (220) peak height of the ceramic binder phase. The insert is made by powder metallurgical methods milling, pressing and sintering, and sintering is performed at lowest possible temperature for shortest possible time necessary to obtain a dense structure. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a high-performance cutting tool insert capable of turning a steel material such as low-alloyed steel, carbon steel, a tough hardened steel at a high cutting speed. SOLUTION: A intensive wet blasting operation is applied to a coating film of a CVD coated cutting tool equipped with a TiC X N Y layer containing a cemented carbide as base material and having a low tensile stress level of 50-390 Mpa and Al 2 O 3 having a high surface smoothness with a mean Ra 0.12 μm or below as measured by the atomic force microscope (AFM) technique. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation:要解决的问题:提供一种能够以高切割速度转动诸如低合金钢,碳素钢,坚硬硬化钢等钢材的高性能切削刀具刀片。 解决方案:将强力的湿式喷砂操作应用于装备有含有硬质合金作为基材的TiC SB> N Y SB>层的CVD涂层切削工具的涂膜 材料,并且具有50-390Mpa的低拉伸应力水平和具有高表面平滑度的平均Ra0.12μm或更低的Al 2 SB> O 3 SB> 力显微镜(AFM)技术。 版权所有(C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a tool for coldforming and drawing operations especially for drawing tire cord maintaining satisfactory toughness as its wear resistance and strength are further increased. SOLUTION: In the ultra fine grained cemented carbide for a steel tire cord drawing die comprising WC, a Co binder phase, and V and/or Cr of ≤1 wt% as grain growth inhibitors, the content of Co is 5 to 10 wt%, and Vickers hardness satisfies HV30>2150-52×wt%Co. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a tool for coldforming and drawing operations particularly in the manufacture of two-piece beverage aluminum or steel cans by the use of ultra fine grained cemented carbide giving better performance than prior art tools. SOLUTION: The ultra fine grained cemented carbide for deep drawing and ironing tools in the manufacture of beverage aluminum or steel cans comprises WC, and V and/or Cr of ≤1 wt% as grain growth inhibitors and Co of 5 to 10 wt%, desirably, 5.5 to 8 wt%, and has a Vickers hardness HV of 30>2150-52×wt%Co. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cutting tool insert colored to distinguish grades according to colors by improving elastic deformation resistance and durability against dispersion-type crater abrasion of hard metal at a blade tip, and heightening exfoliation resistance to reduce a comb-like crack volume during milling. SOLUTION: A rake face and at least one flank cross with each other to constitute a blade tip. This cutting tool insert consists of hard metal, titanium group carbonitride, or ceramic, and is coated with a hard coating multilayer structure with two kinds of MX layers and NX layers including metal oxide laminated alternately. Metal elements M and N are selected from aluminum, zirconium, titanium, hafnium, and chromium. A repeating period of the multilayer structure is 20 nm or more and 200 nm or less, desirably 190 nm or less, and most desirably 175 nm or less. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide coated cemented carbide cutting tool inserts particularly useful for rough milling under dry condition. SOLUTION: The present invention discloses coated milling inserts particularly useful for milling grey cast iron with or without cast skin under dry conditions at preferably rather high cutting speeds and for milling nodular cast iron and compacted graphite iron with or without cast skin under dry conditions at rather high cutting speeds. This insert comprises WC-Co cemented carbide containing a low content of cubic carbide and a high content of W alloy bonding phase, and a coating layer containing TiC x N y inner layer having columnar crystal grain and a wet-blasted α-Al 2 O 3 layer. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation:要解决的问题:提供特别适用于干燥条件下粗铣的涂层硬质合金刀具刀片。 解决方案:本发明公开了特别可用于在干燥条件下优选相当高切割速度下研磨具有或不具有铸塑表面的灰铸铁的涂覆铣削刀片,并且用于在干燥下用于铣削球墨铸铁和压铸石墨铁 条件相当高的切割速度。 该插入物包含含有低含量立方晶碳和W合金结合相含量高的WC-Co硬质合金,以及含有TiC SB> N y SB>内层的涂层 具有柱状晶粒和湿喷粉α-Al 2 SB 3 O 3 / SB 3层。 版权所有(C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide tool holders having various kinds of color as a guide for selecting an appropriate tool for a predetermined machining work from the surface color of the tool holders by an end user. SOLUTION: The tool holder is colored by an outermost thin transparent non-oxide layer, preferably a carbide, nitride or carbonitride layer of a metal from the group comprising groups IVB, VB or VIB of the periodic table, Al, Si and B or mixtures thereof, preferably Ti and/or Al. The layer has a thickness of less than 0.5 μm, preferably from 0.05 to 0.3 μm, most preferably from 0.05 to less than 0.2 μm to exhibit coloer by interference. The body is made of a tool steel. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a cutting insert minimizing the generation of frictional heat in cutting a groove, and preventing chips from jamming or tangling, and easily be controlled. SOLUTION: The deep-grooving chip-forming cutting insert tool is equipped with a rear attachment part, a front cutting part, and a pair of side wall faces. The respective side wall parts are extended along the front cutting part and rear attachment part. The front cutting part includes a front end face, upper surface, and blade edge. The blade edge is arranged at a transition part between the front end face and the upper surface, and is extended from one side wall face to the other side wall face to form a cutting width. The blade edge is equipped with a main part, a pair of first corner parts, and a pair of second corner part. Step are formed between the respective first corner parts and the corresponding second corner parts. When the main part is seen in a direction orthogonal to the upper surface, it has the length of at least 80% of the cutting width. COPYRIGHT: (C)2006,JPO&NCIPI