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Research on an optimized machining method for parallel

高达10%返现 Apr 19, 2015 Parallel grinding method has been widely used for advanced optics machining, especially f-θ optics. In order to reduce the dependence on high-precision machine tool with many degrees of freedom (DOF) and obtain high machining accuracy, in this paper, we propose a simultaneous 2-axis method to replace the conventional simultaneous 3-axis method in parallel grinding.

Parallel Grinding Scientific.Net

Abstract: Parallel grinding is an effective method of aspheric moulds machining which is usually made of industrial ceramic such as silicon carbide (SiC) or tungsten carbide (WC), but if the spherical grinding wheel is not being with precision truing and dressing, the roughness and form accuracy of the ground aspheric surface should get worse, for this reason, in this paper, the influence

Grinding Methodology Research for Helical Drill Based on

高达10%返现 May 05, 2015 Abstract. A new grinding method for the helical drill point based on a biglide parallel grinder was introduced in this paper. According to the mechanism description and kinematics analysis about the biglide parallel grinder, the mathematical models for the flank surface near the chisel edge was established in Cartesian coordinate frame and parametric form respectively.

Wheel curve generation error of aspheric microgrinding in

Dec 01, 2006 In the parallel grinding method, the wheel contact area in the grinding process is changed and wheel wear is scattered on the wheel surface,. Thus, truing accuracy of the wheel radius significantly affects the profile accuracy of ground surface.

Modeling and optimization of grinding parameters for

Apr 27, 2016 A modeling method is presented for grinding of the designated geometrical parameters of twist drill in a Biglide parallel machine, which has the more effective and economic potentialities for grinding of drill point. The grinding kinematics trajectory and condition are analyzed based on the structure of the Biglide parallel machine. Moreover, the mathematical model of twist drill flank are

Machining of Aspherical Molding Dies Utilizing Parallel

The parallel grinding method is an arc-envelope grinding method in which a grinding wheel with an arc-shaped cross-section is used to generate an aspherical profile. The property of the ground surface by the parallel grinding method and the conventional method (cross

Principles of Precision Surface Grinding Services Metal

Jun 09, 2017 Surface grinding services utilize precision surface grinding methods to make cubic metal parts square and parallel or the ends of metal rods perpendicular. Request a Quote 973 239-1100

Research on the Roughness Model of Aspheric Surface with

Study of Parallel Grinding Method for Aspheric Optical Elements,. International Conference on Leading Edge Manufacturing in 21st Century, Nov. 3-6, (2003). DOI: 10.1299/jsmelem.2003.49 [4] Ono Kōji. Theory cutting learning [M]. GaoXizheng, translation. Beijing:National defense industry press, (1985).

parallel grinding English definition, grammar

Methods and apparatus for combinatorial (i.e., high-throughput) materials research, such as catalysis research, that involves parallel apparatus for simultaneously effecting mechanical treatments such as grinding, mixing, pressing, crushing, sieving, and/or fractionating of such

Dressing methods of superabrasive grinding wheels: A

Sep 01, 2019 At present, the dressing methods of superabrasive grinding wheels can be divided into three categories: the first category is a mechanical dressing represented by abrasive block dressing, parallel wheel dressing, and cup wheel dressing; the second category is a special dressing method represented by electrical discharge dressing, electrolytic

Grinding (abrasive cutting) Wikipedia

The tolerances that are normally achieved with grinding are ±2 × 10 −4 inches (5.1 μm) for grinding a flat material and ±3 × 10 −4 inches (7.6 μm) for a parallel surface. [4] The surface grinder is composed of an abrasive wheel, a workholding device known as a chuck,either electromagnetic or vacuum, and a reciprocating table.

A New Regulating Wheel Truing Method for Through-Feed

Aug 01, 2013 grinding machine with 400 mm diameter grinding wheel, 80 mm diameter workpiece, and 50 mm center-height of the workpiece. An XYZ Cartesian coordinate system is first defined. The swivel plane of the regulating wheel is parallel to the YZ plane, i.e., the axis of the regulating wheel is located in the plane X50. The

A Pitch for Thread Grinding Cutting Tool Engineering

Dec 01, 2011 The work zone of a GS:TEM-LM (Mini) grinder (inset) from Drake is used for production-level thread grinding of parts from 0.5mm to 10mm in diameter and up to 100mm long. There are, however, limits to the helix angles that can be produced via axis parallel thread grinding. For ODs, the limit is generally 6°, according to Ueltschi.

Machining of aspherical molding dies utilizing parallel

The parallel grinding method is an arc-envelope grinding method in which a grinding wheel with an arc-shaped cross-section is used to generate an aspherical profile. The property of the ground surface by the parallel grinding method and the conventional method (cross grinding method) was compared about tungsten carbide (WC) for glass lens

Topological Gear Grinding Methods Gear Solutions

May 15, 2014 With this method, the worm grinding wheel is given several sections which can be used for a systematic shift strategy (Figure 16). Figure 18: Bias is opposite when comparing profile grinding with generating grinding. The worm grinding wheel in Figure 16 has four sections. The maximum possible number of sections is proposed by the controls.

US8753173B2 Method and device for grinding the mutually

During grinding of mutually parallel edges of glass plates every edge of the glass plate is ground using a grinding tool or two grinding tools disposed one behind the other and cooling agent is directed from a side of the glass plate toward the grinding tool and supplied using a supply line divided via a redirection and separating segment into a plurality of fine streams of cooling agent, and

Wheel curve generation error of aspheric microgrinding in

In aspheric grinding of hard brittle material, in-process wheel wear is a crucial factor affecting the profile error of the ground surface. To suppress wheel wear

Cutting tool and method for manufacturing the same

A cutting tool includes a base material. The base material is a cemented carbide or a cermet. A surface of the base material includes a rake face, a flank face, and a cutting edge face connecting the rake face to the flank face. The base material has an oxygen concentration of less than or equal to 1 at. % at a depth position of 0.4 μm from the cutting edge face.

Modeling and optimization of grinding parameters for

Apr 27, 2016 A modeling method is presented for grinding of the designated geometrical parameters of twist drill in a Biglide parallel machine, which has the more effective and economic potentialities for grinding of drill point. The grinding kinematics trajectory and condition are analyzed based on the structure of the Biglide parallel machine. Moreover, the mathematical model of twist drill flank are

GRINDING METHOD, TRAJECTORY PLANNING AND

axis grinding robot, revealing that the strategy can prevent soft tissue damage. Fan et al. [13] propose a parallel grinding and non-interfering trajectory planning method for implant grinding robot, which prevents the interference between the two grinding trajectories, and

parallel grinding English definition, grammar

Methods and apparatus for combinatorial (i.e., high-throughput) materials research, such as catalysis research, that involves parallel apparatus for simultaneously effecting mechanical treatments such as grinding, mixing, pressing, crushing, sieving, and/or fractionating of such

A New Regulating Wheel Truing Method for Through-Feed

Aug 01, 2013 grinding machine with 400 mm diameter grinding wheel, 80 mm diameter workpiece, and 50 mm center-height of the workpiece. An XYZ Cartesian coordinate system is first defined. The swivel plane of the regulating wheel is parallel to the YZ plane, i.e., the axis of the regulating wheel is located in the plane X50. The

GRINDING PROCESS

Grinding Process Grinding is a surface finishing operation where very thin layer of material is removed in the form of dust particles. Thickness of material removed is in range of 0.25 to 0.50 mm. Tool used is a abrasive wheel Grinding machine is a power operated machine tool where, the work piece is fed

Grinding Machine: Types, Parts, Working & Operations (With

In this type of grinding operation two grinding wheels are fitted parallel with a little 5-10 degree angle, this angle is provided to get a longitudinal motion of the workpiece. A cylindrical rod is entered between the two grinding wheel due to the tilted angle the workpiece is automatically pass through the wheels, and we got a smooth surface.

Topological Gear Grinding Methods Gear Solutions

May 15, 2014 With this method, the worm grinding wheel is given several sections which can be used for a systematic shift strategy (Figure 16). Figure 18: Bias is opposite when comparing profile grinding with generating grinding. The worm grinding wheel in Figure 16 has four sections. The maximum possible number of sections is proposed by the controls.

TYPES OF GRINDING PROCESS Mechanical engineering

Inside diameter grinding, also called as internal grinding, is used for grinding the inner diameter of tubular object. Workpiece or object will have already drilled hole and internal grinding process will be performed to finish the inner surface of workpiece with the help of small grinding wheel rotating at higher revolution per minute.

Series and parallel combinations

EE 201 series/parallel combinations 12 Breaking down networks using series and parallel R 3 R 4 R 5 R eq R 2 But not all circuits are simple R 1 combinations of series or parallel resistors. The initial example circuit clearly has some things that are in series and some elements that have a parallel

Parallelism (The Java™ Tutorials > Collections > Aggregate

In particular, the collect method is designed to perform the most common stream operations that have side effects in a parallel-safe manner. Operations like forEach and peek are designed for side effects; a lambda expression that returns void, such as one that invokes System.out.println,can do nothing but have side effects.

Machining of Aspherical Molding Dies Utilizing Parallel

Mar 15, 2012 This paper deals with truing/dressing of a high accuracy spherical wheel to be used by the Parallel Grinding Method. The parallel grinding method is an arc-envelope grinding method in which a grinding wheel with an arc-shaped cross-section is used to generate an aspherical profile.

A Pitch for Thread Grinding Cutting Tool Engineering

Dec 01, 2011 The work zone of a GS:TEM-LM (Mini) grinder (inset) from Drake is used for production-level thread grinding of parts from 0.5mm to 10mm in diameter and up to 100mm long. There are, however, limits to the helix angles that can be produced via axis parallel thread grinding. For ODs, the limit is generally 6°, according to Ueltschi.

Wheel curve generation error of aspheric microgrinding in

In aspheric grinding of hard brittle material, in-process wheel wear is a crucial factor affecting the profile error of the ground surface. To suppres

EP1839809A1 Grinding method and grinding machine

The method has a first grinding step in which the grinding wheel is fed to one of the end faces while moving obliquely toward the other end face so as to grind conically, and a second grinding step in which the grinding wheel traverses to the one end face parallel to the rotational axis of the workpiece and then retracts vertically so as to