Showing papers on "Honing published in 2002"
TL;DR: In this article, the authors apply artificial neural networks to develop an empirical model for the honing process of engine cylinder liners in order to help reduce emissions, improve oil efficiency, and prolong engine life.
63 citations
TL;DR: In this paper, a new technology has been developed to produce single layer abrasive tools in which the highly protruding grains are arranged in well defined patterns and applied successfully to manufacture single stroke honing tools.
48 citations
TL;DR: In this article, the fatigue and wear behavior of PVD coatings on carbide inserts with various cutting edge radii were investigated experimentally and analytically in milling.
46 citations
TL;DR: In this paper, the surface characteristics in the ultrasonic ductile-regime honing of ZrO 2 engineering ceramics with a new-type ultrasonic honing machine were compared with those for common honing.
27 citations
Patent•
09 Apr 2002
TL;DR: A machining cell for automatic machining systems is a small-sized and lightweight and simple in construction and that is so arranged as to make it easy to decide and change the number of processing steps and easy to design, and as to be capable of reducing the device cost as mentioned in this paper.
Abstract: A machining cell for automatic machining systems that is small-sized and lightweight and simple in construction and that is so arranged as to make it easy to decide and change the number of processing steps and easy to design, and as to be capable of reducing the device cost. The machining cell (A) has a unit construction comprising a carrying device (10) constituting part of a work carrying passageway (1), a fine boring machine (5a) or honing machines (5b, 5c) as single machine tools, and a control section for controlling them by operatively interconnecting them, it being arranged that such machining cells may be added to or removed from the machining section of an automatic machining system such as an automatic honing system.
17 citations
TL;DR: Two crucial stages of the data analysis are focused on: the preprocessing, which aims at suppressing irrelevant components and enhancing the information of interest, and the feature extraction, which yields reliable numerical estimates of the surface characteristics of interest.
16 citations
TL;DR: The 10th International Manufacturing Conference in China (IMCC 2002) Conference Address: XIAMEN, PEOPLES R CHINA Time:OCT 11-13, 2002 as mentioned in this paper
11 citations
TL;DR: Through systematic experimental and theoretical research, the authors revealed the character of local resonance in ultrasonic honing system, which has the same essence as the local resonance of the ultrasonic machining deep hole system.
10 citations
10 citations
9 citations
Patent•
09 Oct 2002
TL;DR: In this article, the small connecting rod eye is clamped and force is applied to the lengthwise direction of the small rod eye to produce a convex shape of the surface line viewed in the axial direction of hole.
Abstract: A first honing operation produced a convex shape of the surface line viewed in the axial direction of the hole (5) in the small connecting of eye (4). In a second honing operation, a cylindrical section (15) of the surface line is produced and or an oval cross-sectional shape of the hole is produced during the honing operation. During a first and second honing operation, the small connecting rod eye is clamped and force is applied to the lengthwise direction of the small connecting rod eye.
Patent•
16 Apr 2002TL;DR: A diamond-plated tool for cylindrical bores in a workpiece is described in this article, with a spiral pattern on the outer surface of the tool and a central bore with a tapered rod engagedable on the central tool opening.
Abstract: A honing tool assembly adapted to be chucked in a honing machine for reciprocation and rotation, the assembly comprising a diamond-plated tool for honing cylindrical bores in a workpiece, the diamond-plated tool having a spiral pattern on a cylindrical outer surface, a central bore in the tool adapted to receive a tapered rod engageable with a tapered surface on the central tool opening, the tool being provided with a longitudinal slot that allows the outside diameter of the tool to expand as a force is applied to the tapered rod whereby stock is removed from bore walls of the workpiece with precision roundness and concentricity
Patent•
27 Sep 2002
TL;DR: In this paper, a process for producing a plated plastic article, which requires no chemical etching and can ensure high quality of plating without addition of a large amount of any inorganic filler in order to form a physically rough surface for an effective plating adhesion.
Abstract: The invention provides a process for producing a plated plastic article, which requires no chemical etching and can ensure high quality of plating without addition of a large amount of any inorganic filler in order to form a physically rough surface for an effective plating adhesion. After molding thermoplastic materials having a shear strength of 50 MPa or more, the surfaces of the molded articles are subjected to liquid honing treatment with an aluminum abrasive so that the surface roughness Rz (average roughness of ten points) is 10 µm or more, and subsequently addition of catalyst, activation treatment, and electroless plating are carried out.
Patent•
27 Mar 2002
TL;DR: In this paper, a steam-treated film is ground by using a grinding wheel in which diamond abrasive grains in grain sizes of 4,000 or more are metal-bonded with a higher concentration ratio in a honing machine.
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder liner for an internal combustion engine in which a steam-treated film is formed on its inner peripheral face, the film surface has an oil sump that is effective for a lubricating function, and which is excellent in initial adaptability and has a shape for easy finish processing SOLUTION: The steam-treated film is ground by using a grinding wheel in which diamond abrasive grains in grain sizes of 4,000 or more are metal- bonded with a higher concentration ratio in a honing machine The film surface is finished into a plateau shape with surface roughness Rz: 08-59 μm, initial wear height on the basis of DIN4776 standard Rpk: 06-4 μm or less, effective load roughness Rk: 005-18 μm, and oil sump depth (Rvk): 015-33 μm COPYRIGHT: (C)2004,JPO
Patent•
18 Dec 2002
TL;DR: In this paper, a cylinder block has a region of large surface roughness determined by taking a piston position at engine combustion into consideration, and provides cylinder block forming method and device which can smoothly work the cylinder block.
Abstract: PROBLEM TO BE SOLVED: To provide a cylinder block having a region of large surface roughness determined by taking a piston position at engine combustion into consideration, and provide cylinder block forming method and device which can smoothly work the cylinder block. SOLUTION: In this cylinder block 1, a bore inner peripheral surface head region T, which ranges from a position where a top ring Rt of a piston ring R sliding along a bore inner peripheral surface 2a is in a top dead center to a position of an oil ring R when an inside of the bore 2 is in a state of maximum pressure due to fuel combustion, is larger in its surface roughness than a base region B which ranges from below the head region T to a base end 4. In the forming device, a grinding wheel 12a for large surface roughness and a grinding wheel 12b for small surface roughness are arranged to the same honing head 20, and an axial length b of the grinding wheel 12b for small surface roughness becomes short by an axial t length corresponding to the head region T. In the forming method of the cylinder block 1, an entire surface of the bore inner peripheral surface is worked so as to be tapered by the grinding wheel 12a for large surface roughness, and then is applied to a finish working to become straight by the grinding wheel 12b for small surface roughness.
Patent•
04 Jun 2002
TL;DR: In this article, a cutting tool for precise machining has a cutting edge ridge formed on the outer hull ridge part of a substrate of which surface is coated with the hard film.
Abstract: PROBLEM TO BE SOLVED: To stably form a film without peeling a hard film having high abrasion resistance while performance of a 'sharp edge' shape having low cutting resistance is kept SOLUTION: This cutting tool for precise machining has a cutting edge ridge formed on the outer hull ridge part of a substrate of which surface is coated with the hard film The cutting edge ridge of the substrate is provided with a honing R or a chamfer with a width of 01 to 20 μm, and, as the hard film, a hard film with 05 to 5 μm of thickness comprising Ti, one or two or more of 4a, 5a, and 6a group metals in a periodic table and Al, and one or two or more of carbon, nitrogen, and oxygen
Patent•
10 Jul 2002
Abstract: The application describes a honing tool for use with a CNC machine A fluid actuator provides the mechanism for causing radial adjustment of abrasive elements The actuator consists of a piston and cylinder assembly mounted within the tool and powered by the through the tool cooling fluid of the CNC machine
Patent•
08 Oct 2002
TL;DR: In this article, the shape of a tooth surface of a grindstone for dressing at the halfway time is changed according to a parameter (distance S between centers) for the engagement condition with the workpieces of the grindstone.
Abstract: PROBLEM TO BE SOLVED: To restrain variation of a form deviation of workpieces involved in progress of dressing for a grindstone for honing work, and to prevent a substantial shortening of a lifetime of the grindstone for honing work SOLUTION: In the course of repeated dressing of a group of workpieces, a polishing condition of the workpieces at the halfway time of S1 and S2 are required to be close to the polishing condition in a state of engagement with the workpieces in an initial state of the grindstone for the honing work To attain such condition, the shape of a tooth surface of the grindstone for dressing at the halfway time is changed according to a parameter (distance S between centers) for the engagement condition with the workpieces of the grindstone for honing work at the halfway time
Patent•
08 Oct 2002
TL;DR: In this article, the problem of providing a surface machining device for a cylindrical work capable of reliably preventing a damage by abrasive grain on the opening end surface of the cylinrical work in a honing work process is addressed.
Abstract: PROBLEM TO BE SOLVED: To provide a surface machining device for a cylindrical work capable of reliably preventing a damage by abrasive grain on the opening end surface of the cylindrical work in a honing work process. SOLUTION: In the position where the relative positional relation in the cylindrical axial direction (X direction) between an opening end surface Wa of the cylindrical work W and a work seating surface 31 is close, a pressure fluid A supplied in the cylindrical work W is guided toward the whole periphery of the work seating surface 31 by a pressure fluid jetting direction guide means 60 so as to be jetted. By so doing, the abrasive grain or the like deposited on the whole periphery of the work seating surface 31 is swept by jetting force of the pressure fluid A, thereby precluding the possibility of a flaw on the opening end surface Wa including opening inner edge Wd of the cylindrical work W by the abrasive grain at seating.
Patent•
28 Oct 2002
TL;DR: In this article, the authors proposed a method for manufacturing a high modulus of elasticity and excellent sharpness of a grinding wheel suitable for gear honing, and the hardness of the grinding wheel is ≥ 50.
Abstract: PROBLEM TO BE SOLVED: To provide a grinding wheel of high modulus of elasticity and excellent sharpness, in particular, a grinding wheel suitable for gear honing, and a method for manufacturing the same. SOLUTION: In a porous vitrified grinding wheel consisting of sol-gel alumina abrasive grains or sol-gel alumina abrasive grains and other abrasive grains, vitrified binder and pores, hardenable resin is contained in the pores, and the Rockwell hardness HR15W of the grinding wheel is ≥ 50. The hardenable resin includes normal temperature hardenable epoxy resin. COPYRIGHT: (C)2004,JPO
Patent•
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04 Mar 2002
TL;DR: In this paper, a gear honing machine which can uniformly hone both tooth flanks of a work by the rotation in one direction is proposed, where a tailstock 12 to hold a work shaft 20 with the work fitted between a head stock 11 and the tailstock is pressed by the thrust of rotating the work so that teeth shaped into a grinding wheel are abutted on both sides of the gear of the work 2 by a cylinder 17 while preventing the tail stock 12 from being retracted when the load is increased by supporting a rear part 31 of the tail-stock 12 by
Abstract: PROBLEM TO BE SOLVED: To provide a gear honing machine which can uniformly hone both tooth flanks of a work by the rotation in one direction. SOLUTION: A tailstock 12 to hold a work shaft 20 with the work 2 fitted thereto between a head stock 11 and the tailstock is pressed by the thrust of rotating the work so that teeth shaped into a grinding wheel are abutted on both sides of the gear of the work 2 by a cylinder 17 while preventing the tailstock 12 from being retracted when the load is increased by supporting a rear part 31 of the tailstock 12 by a tailstock supporting part 30 having a wedge member 32. COPYRIGHT: (C)2003,JPO
Patent•
13 Jun 2002
TL;DR: In this article, the inner diameter of a reference device is changed relative to a reference inside diameter which exists at a reference temperature by a measure proportional to the product of the temperature difference between atmospheric temperature and the reference temperature and thermal expansion coefficient of the workpiece material.
Abstract: The method involves fine-machining the inside face of the bore (14) at atmospheric temperature using a honing tool (15) with measuring device to measure distance between inner face and measuring device. The inner diameter of a reference device (11) is changed relative to a reference inside diameter which exists at a reference temperature by a measure proportional to the product of the temperature difference between atmospheric temperature and the reference temperature and the thermal expansion coefficient of the workpiece material. The thermal expansion coefficient differs significantly from the thermal expansion coefficient of steel materials. Independent claim describes honing device with reference device for adjusting measuring device.
TL;DR: In this article, the material removal of alumina is analyzed on the basis of honing characteristics, including incidental tensile stresses and crosshatch pattern, and it is shown that an increase in honing pressures can remarkably improve material removal rate.
Patent•
21 May 2002
TL;DR: In this paper, the inner peripheral wall parts 14a to 14f of cylinder bores 12a to 12f of an internal combustion engine were used for making roughness parameters of a roughness curve showing a surface state.
Abstract: PROBLEM TO BE SOLVED: To easily and conveniently form a sliding contact surface having excellent lubricant holding performance and low frictional resistance. SOLUTION: When finishing inner peripheral wall parts 14a to 14f of cylinder bores 12a to 12f of a cylinder block 10 for an internal combustion engine, a working condition for making a roughness parameter of a roughness curve showing a surface state to be formed by the inner peripheral wall parts 14a to 14f of the cylinder bores 12a to 12f within a desired range is inputted in a control circuit 36 of a honing device 30. A grinding wheel of 2000 to 8000 mesh in grain size, preferably, a vitrified bond diamond grinding wheel in which diamond abrasive grains of 3000 mesh are mutually coupled by vitrified bond is used as a grinding wheel for finishing to perform finishing.
Patent•
10 Jul 2002
TL;DR: In this paper, a cutting tool manufacturing method for applying honing and/or chamfering work to a ridge portion of the cutting edge of a raw material containing a hard phase component and a bonding phase component after formed in a predetermined shape and baked comprises baking the raw material after forming in the predetermined shape, heated and degreased, at a temperature or higher at which a liquid phase is produced and at aperature or lower at which the B1 type solid solution reducing layer is produced.
Abstract: PROBLEM TO BE SOLVED: To solve the problem that a B1 type solid solution reducing layer cannot be formed in a cutting edge portion of a cemented carbide substrate. SOLUTION: This cutting tool manufacturing method for applying honing and/or chamfering work to a ridge portion of the cutting edge of a raw material containing a hard phase component and a bonding phase component after formed in a predetermined shape and baked comprises baking the raw material after formed in the predetermined shape, heated and degreased, at a temperature or higher at which a liquid phase is produced and at a temperature or lower at which the B1 type solid solution reducing layer is produced, applying honing and/or chamfering work to the ridge portion of the cutting edge and baking it at a temperature or higher at which the B1 type solid solution reducing layer is produced.
Patent•
10 Sep 2002
TL;DR: In this article, a liquid honing device is composed of a flake ice manufacturing device to manufacture flakes of ice, a mixing tank to which the ice and water are supplied to manufacture ice slurry of a desired thickness, and a blast nozzle to receive supply of the ice slurface from the mixing tank, accelerated by compression gas and blasted toward the surface of the workpiece.
Abstract: PROBLEM TO BE SOLVED: To eliminate a problem of relatively a high cost of liquid honing work using ice particles instead of abrasive wherein manufacturing the ice particles or sliding them in proper size is indispensable, in spite of a number of advantages that no damage is given to a workpiece, that they will not remain on the surface of the workpiece, that used slurry can be easily disposed of, etc., which enlarge its range of applications. SOLUTION: This liquid honing device is composed of a flake ice manufacturing device to manufacture flakes of ice, a mixing tank to which the flakes of ice and water are supplied to manufacture ice slurry of a desired thickness, and a blast nozzle to receive supply of the ice slurry from the mixing tank to be accelerated by compression gas and blasted toward the surface of the workpiece.
Patent•
21 May 2002
TL;DR: In this article, an electro-deposited grinding wheel shaft part 1 and a honing machine mounting part 7 are connected and integrated via an aligning member 8 to provide a mandrel for a high core accuracy and inexpensively manufacturable tool.
Abstract: PROBLEM TO BE SOLVED: To provide a mandrel for an electro-deposited honing tool capable of providing high core accuracy and inexpensively manufacturable. SOLUTION: An electro-deposited grinding wheel shaft part 1 and a honing machine mounting part 7 are connected and integrated via an aligning member 8.
Patent•
18 Dec 2002
TL;DR: In this paper, a throw-away tip is manufactured in such a way that the cutting edge 5 is formed in a crossing edge part of a main surface forming a rake surface 3 of a base material 2 presenting a substantially plate shape and a side surface formed a flank 4; a surface of the base material 1 is covered with a coating layer 6; a honing part 8 is arranged over the flank 4 from the rake surface 2 of the cutting edges 5; and sticking strength of the coating layer in a width area A up to 1 mm in the height H from the raked
Abstract: PROBLEM TO BE SOLVED: To provide a throw-away tip for remarkably improving chipping resistance of a cutting edge. SOLUTION: This throw-away tip 1 is manufactured in such a way that the cutting edge 5 is formed in a crossing edge part of a main surface forming a rake surface 3 of a base material 2 presenting a substantially plate shape and a side surface forming a flank 4; a surface of the base material 2 is covered with a coating layer 6; a honing part 8 is arranged over the flank 4 from the rake surface 3 of the cutting edge 5; and sticking strength of the coating layer 6 in a width area A up to 1 mm in the height H from the rake surface 3 by starting from the honing tail end of the flank 4 is set higher than sticking strength of the coating layer in a central part B of the side surface forming the flank 4. COPYRIGHT: (C)2004,JPO&NCIPI
Patent•
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28 Aug 2002
TL;DR: In this paper, an ice grain mixing tank is used to mix ice grains and water from an upper part of the mixing tank, and these are mixed by an agitation propeller 15 installed downward in the tank to be taken out as ice slurry at a lower part, and a spray gun 8 to spray ice slurps toward the surface of the workpiece.
Abstract: PROBLEM TO BE SOLVED: To solve problems in honing work wherein liquid honing work using ice slurry as projection material is enlarging its application range in which damage is not given to a surface of a workpiece, and projection material is not left on the surface of the workpiece after work, but ice choking phenomenon in a spray gun is caused by ice grains of a large grain size mixed in ice slurry resulting in hindrance to stable honing. SOLUTION: This liquid honing device comprises an ice grain mixing tank 1 in which ice grains and water are supplied from an upper part, and in which these are mixed by an agitation propeller 15 installed downward in the tank to be taken out as ice slurry at a lower part, and a spray gun 8 to spray ice slurry supplied from the ice grain mixing tank 1 toward the surface of the workpiece. Above the agitation propeller 15 in the ice grain mixing tank 1, a mesh parting wall 18 to part the inside of the tank to an upper part and a lower part for prohibiting pass of the ice grains of a preliminarily set grain size or more downward is provided. An agitating rod 20 is provided above and under the mesh parting wall 18 to compose the liquid honing device.
Patent•
11 Jul 2002
TL;DR: Honing ring as mentioned in this paper is a ring-shaped basic body made from abrasive material whose inner (18) and/or outer (16) periphery is provided with a number of teeth.
Abstract: Honing ring comprises a ring-shaped basic body (10) made from abrasive material whose inner (18) and/or outer (16) periphery is provided with a number of teeth (20). The basic body is formed from a stack of disks (26, 28) made from different abrasive material. The disk axis (a) is tilted against the axis (A) of the basic body so that a transverse plane of the basic body cuts at least two disks of the stack. Preferred Features: The end disks (26.1, 26.5) of the stack are wedge-shaped and are covered by cover disks (22, 24) whose disk axis is coaxial to the axis of the basic body.