Grinding Method Parallel

Machining of Aspherical Opto-Device Utilizing Parallel

Parallel Grinding Method Grinding method for the most mainly applying to the machining of the axisymmetric aspherical lens is shown in Figure 1 The system has the vertical wheel axis, and the grinding is performed by simultaneous 2-axis control of X and Z directions [4]

Machining of Aspherical Opto-Device 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

grinding method parallel - greenivorycoza

It does this by using multiple parallel wheels simultaneously for profile grinding instead of just a single grinding wheel that is typically used The Opti Grind Get Price Machining of Aspherical Opto Device Utilizing Parallel Grinding Machining of Aspherical Opto Device Utilizing Parallel Grinding Method

Thickness, Parallelism and Flatness | Precision Grinding, Inc

Sometimes the term “flat and parallel” is used in the part description without numerical values In this case, techniques will be used during the grinding process to improve a part’s flatness and parallelism while obtaining the specified thickness However, particular …

Wheel curve generation error of aspheric microgrinding in

As shown in Fig 1 parallel grinding is performed with a hemisphere wheel that is tilted by θ° with respect to the work piece In this process, the functional area in the grinding moves on the wheel surface during the inward feed Therefore, wheel wear is distributed along the wheel surface

Parallel Grinding - scientificnet

In this stone a new grinding system-parallel grinding system was built, and an CNC system controlled by PMAC (programmable multi-axis controller) was developed, the parallel grinding system can realize Arc Envelope Grinding Method (AEGM) only through controlling 2-axis and the wear of wheel was diminished, the tool path calculation was simplified

Modeling and optimization of grinding - SpringerLink

Abstract 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

Top 3 Methods for Centreless Grinding | Metals

Method # 2 In-Feed (Plunge-Cut-Grinding): This method of grinding is used when the workpiece is of headed, stepped or taper form In this case there is no axial movement of the workpiece as the length of grinding has to be controlled The only movement occurring during the process is the rotating movement

Grinding (abrasive cutting) - Wikipedia

Lubrication The use of fluids in a grinding process is often necessary to cool and lubricate the wheel and workpiece as well as remove the chips produced in the grinding process The most common grinding fluids are water-soluble stone fluids, water-soluble oils, synthetic oils, and petroleum-based oils

Ryeco, Inc - Double Disc Grinding Specialists - Home

In this grinding method, two opposed abrasive discs, each mounted on its own spindle, simultaneously grind opposite and parallel faces on pieces traversed between them …

Parallel Grinding - scientificnet

Abstract: Two grinding methods, parallel grinding and cross grinding, were applied to the horizontal-axis-type rotary surface grinding of silicon and tungsten carbide It was found that the cross grinding method results in better ground surface roughness than parallel grinding for the silicon wafer and that an isotropic ground surface topography is achieved for both silicon and tungsten carbide by cross grinding

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

Surface Grinding Methods - practicalmachinist

Nov 15, 2015 · Three (of a number of) surface grinding methods are *Conventional grinding: One example might be: Take one down feed of 001 when you are wheel in front and off the part Then a cross feed of (perhaps)015 each time the wheel is off the work at each end of long travel

DEVELOPMENT OF CROSS AND PARALLEL MODE …

There are the cross-grinding method and the parallel-grinding method in the micro aspherical grinding In the cross-grinding, where the wheel rotational direction is cross to the workpiece rotational direction, form accuracy and surface roughness are usually fine compared with the parallel-grinding

Parallel grinding error for a noncoaxial nonaxisymmetric

Abstract To machine a noncoaxial nonaxisymmetric aspheric lens, a new parallel grinding method that employs a fixture with an adjustable gradient (AGF) is proposed The AGF is developed for a three-axis computer numerically controlled grinding machine The grinding method is presented according to the proposed grinding system

Research on an optimized machining method for parallel

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

Double-Disc Grinding On The Move : Modern Machine Shop

Productivity And Accuracy Horizontal spindle, double-disc machines are used to grind both sides of two parts simultaneously by a "park and grind" method An indexer "parks" two of the parts at a time between parallel grinding wheels, and opposite sides of the parts are ground A servomotor is …

OD Grinding | Cylindrical Grinding | Surface Grinding

Surface Grinding By surface grinding, we achieve flat, square, and parallel surface finishes on parts up to 12" x 24" in size Achieving surface finishes 8 RMS or better, is not a problem for us

A Pitch for Thread Grinding | Cutting Tool Engineering

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 index the turret to another wheel and grind a precise thread The old method would have involved putting the part through one or several OD grinders, followed by a thread grinder

Machining of micro aspherical mould inserts - ScienceDirect

Parallel grinding method Axisymmetrical mould inserts are usually ground using cross grinding In this study, the parallel grinding method is adopted because it is able to improve the surface finish [18], [19] and tool life [20] A schematic diagram of the parallel grinding method is showed in Fig

4 Ways to Grind Metal - wikiHow

Nov 11, 2018 · Method 2 Smoothing Welds on Sheet Metal 1 Clamp the metal to your work surface Keep your grinding disc nearly parallel to the metal so the grinder smoothes out the edges of your weld even to the sheet metal Some grinding discs have a slight …

Research on the Roughness Model of Aspheric Surface with

In this stone a new grinding system-parallel grinding system was built, and an CNC system controlled by PMAC (programmable multi-axis controller) was developed, the parallel grinding system can realize Arc Envelope Grinding Method (AEGM) only through controlling 2-axis and the wear of wheel was diminished, the tool path calculation was simplified

Eight tips for effective grinding - The FABRICATOR

A review of the fundamentals may help free the grinding bottleneck Grinding basically is a machining operation; the cutting edges (that is, the grains) and chips are just smaller Just as different cutting tools are designed for different applications, different grinding discs are designed for different metals

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

grinding method circuit - klabrickellparents

the recovery of minerals using dry grinding method Open Circuit Grinding Open circuit grinding consists of one or more grinding mills, either parallel or in series, that discharges a final ground product without classification equipment and no return of coarse discharge back to the mill

4 Ways to Grind Metal - wikiHow

Nov 11, 2018 · Hold the grinding disc as level as you can to the piece of metal Welds tend to have dips up and down, so holding the grinder at an angle could cause it to gouge into the metal Keep your grinding disc nearly parallel to the metal so the grinder smoothes out …

simultaneous grinding method - klabrickellparents

Process optimization of simultaneous grinding of Hardmetal The joining method was a key parameter for the grinding of knives Glued samples had an unacceptable discard ratio, especially on the peripheral grinding operations \A baseline study on simultaneous grinding processes of steel hardmetal assemblies with diamond grinding wheelsquot;

What Is Lapping? - Abrading Methods- The Flat Lapping

Lapping is a precision process or combination of processes used to provide flatness, parallelism, size and surface finishes to extremely demanding tolerances The process is a manufacturing method that employs particles of an abrasive material to remove stock …

US7452263B2 - Grinding method - Google Patents

A method of grinding the outer circumferential surface of a workpiece 5 formed of a hard and brittle material into a predetermined shape using a grinding wheel while rotating the workpiece 5 is disclosed

Difference between Crushing and Grinding

Difference between Crushing and Grinding In order to divide up the original cube, then, along one set of these parallel planes the work required to be done is proportional to (x/y – 1)x², and since the shearing has to be effected along three such sets of planes, the total work done is measured by 3 (x/y – 1)x²

Grind to Finish: A Postprocessing Solution for Additive

The conventional method when measuring a ground surface finish, using a contact profilometer, is to take the trace perpendicular to the grind lines as opposed to measuring parallel to the grind lines In this study, it was decided to measure the surface finish after grinding in …

Surface Grinder Operation 251 - toolingu

Surface Grinder Operation 251 Grinding each side of a workpiece requires wheel dressing and other preparatory steps, and then roughing and finishing passes Workpiece sides are numbered from 1 to 6 in order to track which sides must be ground perpendicular or parallel to one another Some workpieces require special considerations,

Grinding surfaces square - practicalmachinist

Jun 06, 2012 · Grinding surfaces square By doing that, you have now created a 90* angle from those two sides, although it won't be true to the rest of the part Next, you can then flip the part 180*, grind the opposite side to parallel of the first, then continue to finish the other face (or other 3 faces, if a cube)

A New Regulating Wheel Truing Method for Through-Feed

The Z-axis is parallel to the axes of the grinding wheel, workpiece, and traverse direction of the rotary truing disk The X-axis is perpendicular to the swivel plane of the regulating wheel and passes through the grinding wheel axis The swivel point on the regulating wheel axis locates on the XY plane (Z50)

Chuck's Grinding, Inc - Grinding

Double Disc Grinding Double disc is used for parts that must have parallel and flat surface areas finished to critical tolerances Materials include:aluminum, brass, cast iron, plastic, powdered metal and steel

Downfeed grinding machine for plane-parallel grinding of

ELECTRONICALLY CONTROLLED PRECISION-SPRING END GRINDING MACHINE This machine is provided for simultaneous grinding of both ends of cylindrical and conical compression springs This machine is suitable to grind springs in accordance to several different methods: - Downfeed grinding - Grinding method with automatic feeding advance (Digital grinding)

Double Disc Grinding services Illinois - Micro

Double Disc Grinding Services in Chicago Double Disc Grinding services offer a highly productive and accurate means for machining to-size parts with flat and parallel sides In this grinding method, two opposed abrasive discs, each mounted on its own spindle, simultaneously grind opposite and parallel faces on pieces traversed between them

Grinding Segments For Blanchard Grinding Replacement Segments

Wholesale Grinding Segments For Blanchard Grinding Replacement Segments Home Aerosol's Liquid Filling (thickness), greater ability to achieve flatness and close parallel tolerances, elimination of parting lines, and stable RMS finishes Blanchard grinding is an effective grinding method for simultaneous grinding of small and large parts