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Grinding (abrasive cutting) Wikipedia

Selecting which of the following grinding operations to be used is determined by the size, shape, features and the desired production rate. Creep-feed grinding (CFG) was invented in Germany in the late 1950s by Edmund and Gerhard Lang. Unlike normal grinding, which is used primarily to finish surfaces, CFG is used for high rates of material removal, competing with milling and turning as a manufacturing process choice. Depths of cut of up to

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Machining Material removal processes

The most common abrasive machining process is grinding, in which the cutting tool is abrasive grains bonded into a wheel that rotates against the workpiece. Grinding may be performed on a surface grinding machine which feeds the workpiece into the cutting tool, or a cylindrical grinding machine which rotates the workpiece as the cutting tool

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Centerless grinding Wikipedia

Centerless grinding is a machining process that uses abrasive cutting to remove material from a workpiece. Centerless grinding differs from centered grinding operations in that no spindle or fixture is used to locate and secure the workpiece; the workpiece is secured between two rotary grinding wheels, and the speed of their rotation relative to each other determines the rate at which material is removed from the workpiece. Centerless grinding is typically used in preference to other grinding processes for operations w

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Centerless Grinding: Not Magic! : Modern Machine Shop

Dec 15, 2000· In thrufeed grinding, the regulating wheel is inclined, creating a feed angle relative to the grinding wheel. This feed angle allows the regulating wheel to perform the dual purpose of rotating the workpiece against the grinding wheel and driving the workpiece across the face of the grinding wheel.

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Optimizing grinding and dressing with 'dressing speed

Jun 04, 2018· The dress speed ratio can also be adjusted to help avoid process issues that include material burn, workpiece chatter, poor dresser life, etc. Therefore, a good understanding of the effects of the dress speed ratio on the grinding process is essential to truly optimize a new or existing grinding process. References:

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Simulation of surface grinding process, part 2

This stone is the second part of the two-part series, which describes the kinematic simulation of the grinding process. The complex wheel–workpiece interaction is taken into consideration in the generation of the workpiece surface. An algorithm is proposed to identify the active abrasive grains and their attack angles from the wheel topography.

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Grinding YouTube

Jun 19, 2014· The grinding process segment examines the grinding process parameters and the resulting force, friction, and heat relationships. The workpiece surface finish segment covers the process

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Centerless Grinding

Instead, it is better to think of it as a self-truing grinding process. In grinding, the wheel follows a simple path. For example, in plunge grinding a shaft, the wheel moves in towards the axis of the part, grinds it, and then moves back out. Since each slice of the wheel repeatedly contacts the same slice of the workpiece, any inaccuracies in

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TYPES OF GRINDING PROCESS Mechanical engineering

Dec 21, 2015· 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.

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Identification of effective engineering methods for

It has been confirmed that the vibration of handheld workpieces in their grinding processes results partially from the vibration generated on and transmitted from the grinding machine and partially from the grinding/abrasive process at the workpiece interface (Chen

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Workpiece definition of workpiece by The Free Dictionary

Define workpiece. workpiece synonyms, workpiece pronunciation, workpiece translation, English dictionary definition of workpiece. n a piece of metal or other material that is in the process of being worked on or made or has actually been cut or shaped by a hand tool or machine n. Thermal phenomena, which inevitably accompany the grinding

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TYPES OF GRINDING PROCESS Mechanical engineering

Dec 21, 2015· 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.

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Workholding for Cylindrical Grinding Canadian Metalworking

Aug 16, 2011· Instead of feeding the workpiece through the grinder, the part is located against a stop and a specially dressed wheel is traversed into the part, crush-grinding the profile on the workpiece. This process generally is used for high volumes, as the grinding wheels used are large and expensive, and custom dressing them is time-consuming.

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Centerless Grinding : Process, Types & Advantages

Aug 05, 2019· Centerless Grinding is an outer diameter grinding process sometimes we call it OD Grinding. Centerless grinding is a process used to remove material from a workpiece. It is different from the cylindrical, centered grinding process.

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Centerless Grinding

Process. A cylindrical grinder has a grinding (abrasive) wheel, two centers that hold the workpiece, and a chuck, grinding dog, or other mechanism to drive the work. Most cylindrical grinding machines include a swivel to allow for the forming of tapered pieces. The wheel and workpiece move parallel to one another in both the radial and longitudinal directions.

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Centerless Grinding

Instead, it is better to think of it as a self-truing grinding process. In grinding, the wheel follows a simple path. For example, in plunge grinding a shaft, the wheel moves in towards the axis of the part, grinds it, and then moves back out. Since each slice of the wheel repeatedly contacts the same slice of the workpiece, any inaccuracies in

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GRINDING MACHINES stone Engineering Department

GRINDING MACHINES Grinding is the process of removing metal by the application of abrasives which are bonded to form a rotating wheel. When the moving abrasive particles contact the workpiece, they act grinding where the workpiece is supported in the hand and

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Optimizing The Grinding Process : Modern Machine Shop

Dec 01, 2003· Optimizing The Grinding Process. When the details of a specific grinding task—workpiece material, type of grinding wheel, dimensional tolerances, surface finish requirements and so forth—are loaded into the model, the system will determine the machine settings, wheel speed, depth of cut, dressing frequency and other parameters required

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ID and OD Shoe Grinding for Thin-Walled Workpieces

Aug 23, 2017· One of the demonstrations showed grinding of both the ID and OD of a thin walled blank supported axially and radially by a shoe grinding fixture. This process is called shoe grinding and because it has nothing to do with footwear, the process is also known as microcentric grinding.

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Chapter 5: Surface Grinder Manufacturing Processes 4-5

Ensure the proper wheel for the stock is being used. There are different grinding wheels for aluminum, stainless steel, and titanium. Clean the bed before placing the workpiece onto it. This will prevent interference with the magnetic chuck. Place magnetic parallels around the workpiece to ensure the workpiece does not shift during grinding.

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US5251405A Method for circumferential grinding of

A method serves for circumferential grinding of radially non-circular workpieces, in particular for grinding cams (15) or polygons. The workpiece is rotated about a first second axis (13) extending at an angle, preferably of 90°, relative to the first axis (18). Starting out from a raw contour, the material at the surface of the workpiece (15) is removed along spiral-shaped paths of a point

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Get a Clear Visual on Your Grinding Surface Finish

Nov 11, 2019· To grind a workpiece successfully on a cylindrical machine, every part of the equipment and every step of the procedure must function like the links in a well-made chain, or a single weakness can cause the entire process to fail. You need the correct settings, grinding wheel, coolant, working environment and more to make a well-made part with an excellent surface finish. To avoid the flaws

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Centerless Grinding Basics : Production Machining

Nov 28, 2016· Centerless grinding is an OD grinding process where the workpiece is supported on its own OD by a work blade located between a high speed grinding wheel and a slower speed regulating wheel with a smaller diameter.

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Chapter 5: Surface Grinder Manufacturing Processes 4-5

Ensure the proper wheel for the stock is being used. There are different grinding wheels for aluminum, stainless steel, and titanium. Clean the bed before placing the workpiece onto it. This will prevent interference with the magnetic chuck. Place magnetic parallels around the workpiece to ensure the workpiece does not shift during grinding.

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US5251405A Method for circumferential grinding of

A method serves for circumferential grinding of radially non-circular workpieces, in particular for grinding cams (15) or polygons. The workpiece is rotated about a first second axis (13) extending at an angle, preferably of 90°, relative to the first axis (18).

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Get a Clear Visual on Your Grinding Surface Finish

Nov 11, 2019· To grind a workpiece successfully on a cylindrical machine, every part of the equipment and every step of the procedure must function like the links in a well-made chain, or a single weakness can cause the entire process to fail. You need the correct settings, grinding wheel, coolant, working environment and more to make a well-made part with an excellent surface finish. To avoid the flaws

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Centerless Grinding Basics : Production Machining

Nov 28, 2016· Centerless grinding is an OD grinding process where the workpiece is supported on its own OD by a work blade located between a high speed grinding wheel and a slower speed regulating wheel with a smaller diameter.

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DE19806608A1 Workpiece processing with grinding tool

The method involves processing a workpiece by means of at least one frontal cutting, grinding tool, whose alignment is directed towards the surface of the workpiece. The desired profiles of the workpieces (3) are continuously produced on a fully automatic CNC grinding machine in five controllable machine axes with at least one grinding tool (15) in form of a frontal milling cutter with

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Smart clamping set-up enhances productivity: JUNKER Group

JUCENTRIC 500 cylindrical grinding machine from JUNKER. For the external grinding of cam shafts, workpieces are positioned and clamped in the JUCENTRIC 500 between centers the workhead and tailstock. Grinding takes place while the workpiece is clamped in position, ensuring that the relation to the centerline is maintained.

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Regenerative chatter in a plunge grinding process with

Dec 20, 2016· Grinding vibrations caused by regenerative cutting force and workpiece imbalance are discussed in this study. To regenerate workpiece surface, a grinding wheel is rotated, and pushed towards a rotating workpiece, rubbing and cutting its surface, with regenerative and frictional interactive forces generated. Besides, any mass imbalances of the rotating workpiece or the wheel is another

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Chapter 17: Cutting Tool Applications — Grinding Methods

Surface grinding Surface grinders are used to produce flat, angular and irregular surfaces. In the surface grinding process, the grinding wheel revolves on a spindle; and the workpiece, mounted on either a reciprocating or a rotary table, is brought into contact with the grinding wheel.

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Surface Grinding Machine:Grinding Process, Specifications

Nov 27, 2018· Surface Grinding Machine: Grinding Process, Specifications of Grinding wheel-Detailed PDF: Grinding is the conventional finish machining Process used for producing a good surface finish on the components. The abrasive particles present on the surface of a grinding wheel will be acting as a single point cutting tools for removing the material from the workpiece.

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Modeling of Vibration Condition in Flat Surface Grinding

2.2. Vibration Modeling of the Flat Surface Grinding Process. A free-body diagram of the flat surface grinding process with forces acting on the grinding wheel and the workpiece is indicated in Figure 2.There is a normal grinding force (), which acts due to the chip formation, and a normal grinding force (), which acts due to the friction between the wheel and the workpiece in the normal

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What is Electrochemical Grinding and How it Works

Sep 24, 2018· It is a smoother process than any other machining processes. Sometimes many machining processes result in damage to the workpiece but in case of the electrochemical grinding, the workpiece is not get affected at all. Also, it causes the wear and tear of the grinding wheel in a very small proportion.

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Precision Grinding Services & Capabilities Centerless

Precision grinding is a manufacturing process that employs a rotating grinding tool to remove material from a workpiece such that it conforms to the desired specifications. Grinding tools consist of abrasive material, which chip or scratch off layers of material as the tools or workpieces rotate.

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(PDF) CAVE Simulation of Centreless Grinding Process

The goal is to simulate a centreless grinding process in virtual reality (VR). The simulation is based on an analytical model that incorporates geometry of the grinding gap, workpiece kinematics

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Abrasive Machining YouTube

Nov 16, 2018· Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Common examples include grinding, honing, and polishing.

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What is Electrochemical Grinding and How it Works

Sep 24, 2018· It is a smoother process than any other machining processes. Sometimes many machining processes result in damage to the workpiece but in case of the electrochemical grinding, the workpiece is not get affected at all. Also, it causes the wear and tear of the grinding wheel in a very small proportion.

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Precision Grinding Services & Capabilities Centerless

Precision grinding is a manufacturing process that employs a rotating grinding tool to remove material from a workpiece such that it conforms to the desired specifications. Grinding tools consist of abrasive material, which chip or scratch off layers of material as the tools or workpieces rotate.

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(PDF) CAVE Simulation of Centreless Grinding Process

The goal is to simulate a centreless grinding process in virtual reality (VR). The simulation is based on an analytical model that incorporates geometry of the grinding gap, workpiece kinematics

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Abrasive Machining YouTube

Nov 16, 2018· Abrasive machining is a machining process where material is removed from a workpiece using a multitude of small abrasive particles. Common examples include grinding, honing, and polishing.

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Machining quiz Flashcards Quizlet

cutter teeth and workpiece motion are opposite, poorer finish, cut wears machine tool evenly grinding a material removal process that uses abrasive grains to remove chips from a workpiece

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SATURN Grinding machine: JUNKER Group

SATURN Double surface grinding machines Double surface grinding. With SATURN double-wheel surface grinding, two vertical grinding wheels grind the workpiece simultaneously at its parallel end faces. With the through-feed grinding process, the grinding wheels are positioned slightly conically to each other so that the workpiece guided through

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Optimization of Generation Gear Grinding Process IJERT

Jul 24, 2019· Abstract One of the main challenges in generation gear grinding is the establishment of an optimized grinding process. The objective of this stone was to design a more productive grinding process through the reduction in grinding time for a specific machine, in

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abrasive machining processes IIT Kanpur

Grinding is a combination of rubbing, ploughing and cutting (actual chip formation) . A certain level of grit penetration into workpiece is required before chip formation can start. Magnitude of critical grit depth of cut required to initiate cutting becomes less with the increase of grinding velocity.

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White Paper: Understanding Forces in Creepfeed Grinding

The direction of these forces is a particularly important consideration for processes where the point of tangency between the wheel and workpiece might change during the grinding process, resulting in a change in direction of the grinding forces, for example in 5-axis grinding operations.

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Grinding Processes 201 Tooling U-SME

A grinding process in which the workpiece is held firmly by a chuck on one end with the grinding wheel inserted into the other to shape and finish its inner sides. Internal chucking-type grinding is the most common type of ID grinding. internal diameter: ID. A type of grinding performed on the interior surface of a cylindrical workpiece.

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Between Centers & Centerless Grinding Services Tight

centerless grinding is an OD (outer diameter) grinding process. Unique from other cylindrical processes, where the workpiece is held in the grinding machine while grinding between centers, the workpiece is not mechanically constrained during centerless grinding. Therefore the parts to be ground on a centerless grinder do not need center holes

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Surface grinding Wikipedia

Surface grinding is used to produce a smooth finish on flat surfaces. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.

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Milling vs Grinding: What's the Difference? Monroe

Grinding, on the other hand, is a machining process that involves the use of a disc-shaped grinding wheel to remove material from a workpiece. There are several types of grinding wheels, some of which include grindstones, angle grinders, die grinders and specialized grinding machines.

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ME2653 Exam 4 Flashcards Quizlet

In centerless grinding, the regulating wheel controls _____ in the grinding process. rotating speed and axial feed of the work piece True or False: Creep feed grinding is a process preformed on a conventional horizontal spindle, reciprocating table surface grinder.