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JPH0715227U |
[Purpose] To improve the wear resistance of the cutting edge and provide a reamer that is less likely to cause chipping. [Constitution] Initially, the first insert 42 having a small cutting resistance abuts on the work to start high-prec...
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JPH0760501A |
PURPOSE: To provide a machining device capable of manufacturing simply and with required accuracy. CONSTITUTION: An external reamer has a cutting head 11 having two claws 15, 16 projecting parallel to the axis from a base 12. A cutter pl...
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JPH0760539A |
PURPOSE: To efficiently and accurately perform spread working a hole formed in a metal material by providing a guide part, having a cylindrical margin with a rotary lotus in the axial direction of equal diameter to a maximum diametric pa...
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JPH0711226U |
[Purpose] We provide a reamer with good hole drilling accuracy and cost improvement. [Constitution] The tip side occlusal surface 8 of the tip 1 and the holder side occlusal surface 9 of the holder 2 are occluded, respectively, the bolt ...
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JPH0740141A |
PURPOSE: To mount and demount a cutting edge tip at the top edge of a reamer and secure the high precision of roundness. CONSTITUTION: A reamer body 17 projects a projection shaft 27 so as to surround a blind hole 25 formed from the top ...
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JPH0740140A |
PURPOSE: To provide an electric deposition reamer which can develop the characteristics of each abrasive grain to the extent and can carry out working with the exceedingly high precision. CONSTITUTION: Diamond abrasive grains 5 having hi...
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JPH0732211A |
PURPOSE: To facilitate change and assemblage and improve boring accuracy by incorporating a tip in an inclined side end face of the guide part of a holder which is inclined by a predetermined angle to a surface orthogonal to the axis of ...
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JPH079349A |
PURPOSE: To dispense with an expensive equipment such as a honing board and to extend the service life of a tool, by providing an abrasive grain tool to finish the inner surface of a hole with extreme precision, to require no honing fini...
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JPH079350A |
PURPOSE: To provide an abrasive grain tool for grinding and/or cutting which can prevent generation of a breakage and a removal of hard abrasive grains, and has a long service life. CONSTITUTION: In an abrasive grain tool for grinding an...
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JPH0650092Y2 |
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JPH0674215U |
[Constitution] The groove wall surface 6 of the chip discharge groove 5 provided on the blade at the tip of the tool body 1 facing the tool rotation direction is located on the inner peripheral side groove wall surface 6a on the inner si...
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JPH06277944A |
PURPOSE: To provide a reamer which is excellent in the catching action of a cutting edge and can accurately finish the bore of a hole for a long time by coating the surface of a part except at least a face at a cutting edge with a titani...
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JPH0671684B2 |
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JPH0634900Y2 |
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JPH0634899Y2 |
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JPH0632254Y2 |
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JPH0618743Y2 |
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JPH0633624U |
[Constitution] Cutting blades 5a and 5a and 6 vanishing blades 5b, 6b, 7b, 5b, 6b and 7b are provided, and the margin width of the vanishing blades 5b, 6b, 5b and 6b is about 5 mm from the outer peripheral corner. A cutting tool for dril...
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JPH06114628A |
PURPOSE: To prevent occurrence of clog with splash by furnishing a cap at the tip of a tool body in such a way as enclosing the discharge hole while the opening of the cap is directed to the base end in the axial direction, putting the i...
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JPH0611707Y2 |
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JPH0611708Y2 |
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JPH0620664B2 |
A guide member is removably, but self lockingly, mounted on a cutter head. The cutter head has a dovetailed recess which receives the guide member. One side of the recess has bores which accommodate elastic elements which protrude into t...
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JPH0617825U |
[Purpose] To improve so that the accuracy of the machined hole can be maintained. [Constitution] The gun reamer 1 is composed of a tool body 2 and a pipe portion 3, and the tool body 2 is formed with an outer peripheral cutting edge ridg...
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JPH067863Y2 |
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JPH0655337A |
PURPOSE: To enable the removal of burrs generated by intermittent machining and the cutting of spring-back quantity in less processes. CONSTITUTION: A reamer body 2 is provided at its tip part with a cutting edge 1 provided with a center...
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JPH0647619A |
PURPOSE: To shorten extremely the length between a first blade for roughing and a second blade for finishing, provide a long regrinding length, minimize processing residual, improve chamferring performance of the first blade, and improve...
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JPH0639617A |
PURPOSE: To improve the centripetal characteristic and the cutting stability, and improve the surface roughness of the wall surface inside of a hole remarkably to improve the accuracy of the finish hole remarkably. CONSTITUTION: A burnis...
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JPH0611919U |
[Purpose] We basically provide a 3-flute type gun reamer with improved coaxiality of the work piece. [Constitution] A cutting edge tip 2 made of cemented carbide or the like is attached to the pipe-shaped tool body 1, and the cutting edg...
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JPH065063Y2 |
The operating life of the two guide members in a single bit reamer is increased by shaping the peripheral surface of the guide members with a radius of curvature less than the radius of the bore being machined. Contact between each guide...
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JPH0631516A |
PURPOSE: To provide a burnishing drill excellent in its drill edge and reamer edge wear resistance, which remarkably enhances the finished hole. CONSTITUTION: In a burnishing drill 1 at the tip of a drill body connected to a cylindrical ...
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JPH069821U |
[Purpose] Provided is an angular reamer capable of performing high-precision machining without deteriorating the sharpness of the cutting edge for a long period of time and significantly reducing the frequency of replacement. [Constituti...
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JPH0615511A |
PURPOSE: To bore a stepped but near to tapered bore in one boring and to reduce the number of production processes by roughly boring it with a drill furnished with a point cutting blade the rotational locus of which makes a circle and a ...
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JPH065823U |
[Purpose] Improves finished surface roughness and tool life. [Constitution] A rough blade 6, a finishing blade 7, and first to third guide pads 8, 9, and 10 are formed on the outer peripheral portion of the cutting blade 2 provided at th...
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JPH068043A |
PURPOSE: To provide a single blade type reamer, the life of which is remarkably lengthened by hardly causing welding of a guide projection streak piece. CONSTITUTION: This single blade type reamer 1 has a main body. One cutter plate 7 an...
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JPH05345221A |
PURPOSE: To provide a reamer with high efficiency by lengthening the life of a cemented carbide coating reamer and increasing the rigidity thereof. CONSTITUTION: In a coating reamer where plural cutting edges having torsion are formed on...
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JPH05329707A |
PURPOSE: To obtain an excellent cutting face to reduce cutting vibration by uniting a superhigh pressure sintered body tip to form the base of a central cutting edge and a superhigh pressure sintered body tip to form the base of an outer...
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JPH0578427U |
[Purpose] Even if the pilot hole is laterally displaced or inclined, the action of the gun drill at the time of biting is used to give the reamer straightness so that the reamer hole can be accurately machined on the initial center line....
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JPH05277828A |
PURPOSE: To prevent the cutting blade of a reamer from lowering in stiffness. CONSTITUTION: A cutting oil flow-in hole 12 is penetrated through the inside of a shank section 6, and a blade groove 13 is formed in a cutting blade section 7...
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JPH05253742A |
PURPOSE: To perfectly eliminate the chip jamming and stabilize the life of a tool by forming the outer peripheral cutting edge and the end cutting edge of a cutter part which is continuous to a shank part, to a continuous blade form and ...
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JPH0570829U |
(57) [Summary] [Purpose] To prevent tilting between the cylindrical member and the reamer from the start of cutting to the end of cutting. [Structure] A cutting edge 3 is provided only in the central portion 1B of the reamer 1, no cuttin...
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JPH05245764A |
PURPOSE: To secure a specified surface roughness in a stable manner by having abrasive grains stuck fast to a taper surface of a sheet surface machining part being relatively and unrotatively connected to a reamer body part, and provided...
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JPH05245711A |
PURPOSE: To enhance the druability of, and facilitate re-grinding of a workpiece by, a drill generating less flashes during a through-hole fabrication. CONSTITUTION: The inner peripheral surface of a hole formed with use of a first main ...
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JPH0536566Y2 |
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JPH05228728A |
PURPOSE: To remarkably improve the accuracy of a shaft center, as well as the surface roughness, for facilitating the improvement of productivity and adaptability to simultaneous machining by forming plural number of cutting edges on a p...
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JPH05228809A |
PURPOSE: To obtain a rotating tool polishing mechanism and a polishing method for a rotating tool by which perfect roundness can be obtained and high- accuracy machining can be carried out. CONSTITUTION: Cutting face areas 32a-32d are pa...
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JPH0560724U |
[Purpose] Manufacture of a torsion blade insert made of a composite sintered body is facilitated and simplified, whereby an effective cutting tool with a torsion blade insert is obtained. [Constitution] The torsion blade tip 1 made of a ...
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JPH0529629U |
(57) [Summary] [Purpose] To make it easy to manufacture electrodeposited reamer tools with good sharpness, diametrical accuracy, surface roughness, and long life. [Structure] Machining abrasive grains 12 were electrodeposited on the tape...
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JPH0529628U |
[Purpose] The structure should be such that the life as a tool can be improved. [Constitution] The cutting edge contact portion 5a of the round land blade 5 is provided so as to be retracted by the dimension t from the cutting edge bitin...
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JPH0523885B2 |
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JPH0523886B2 |
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