Question: What Is Facing Process?

What is the purpose of facing process?

Facing is a common machining process that involves the use of a lathe or milling machine to remove material from the end and/or shoulder of a workpiece.

After the workpiece is placed on the machine, a cutting tool is pressed against it at the end or shoulder..

What is face milling used for?

Face milling is a machining process in which the milling cutting is placed perpendicular to the workpiece. The milling cutting is essentially positioned “face down” towards the top of the workpiece. When engaged, the top of the milling cutting grinds away at the top of the workpiece to remove some of its material.

What is turning and facing?

In the turning operation, the tool generally reduces the diameter of the cylindrical workpiece, which can be done by cutting into the part for some depth and move the tool parallel to the axis of the part. While facing operation reduces the length of the piece, the tool is moved perpendicular to the axis of the part.

Which feeding is needed for facing operation?

cross feedWhich type of feed is needed in facing operation? Explanation: Facing operation is done by the cross feed. In facing, workpiece is rotated against the single point cutting tool.

Why is facing needed?

Facing on a milling machine is the process of cutting a flat surface perpendicular to the axes of the milling cutter. … To obtain a smoother surface finish it is best to let the machine feed the table. Newer manual milling machines and CNC machines will have this option, but older milling machines will not.

What is a turning process?

Turning is a machining process in which a cutting tool, typically a non-rotary tool bit, describes a helix toolpath by moving more or less linearly while the workpiece rotates. … Thus the phrase “turning and boring” categorizes the larger family of processes known as lathing.

What is hard turning process?

Hard turning is typically defined as the turning of a part or barstock of harder than 45HRC on a lathe or turning center. Since surface roughness of Rmax/Rz=1.6s can be achieved, hard turning is often considered a replacement for grinding operations or as a pre-grinding process.

What is lathe process?

A lathe is a tool that rotates the workpiece on its axis to perform various operations such as cutting, sanding, knurling, drilling, or deformation, facing, turning, with tools that are applied to the workpiece to create an object with symmetry about an axis of rotation. …

What is the process of knurling?

Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled or crossed lines is rolled into the material.

What is the purpose of face milling?

30.2. Face milling generates a surface normal to the axis of rotation. It is generally used for wide flat surfaces. The peripheral portions of the teeth do most of the metal cutting.

Which of the following is the example of cutting shaping process?

Which of the following is the example of cutting shaping process? Explanation: Only knurling is an example of cutting shaping process. … The process of metal cutting is affected by the relative motion between the piece of work and the hard type edge of a cutting tool against the work piece.

What is a facing tool?

Facing is a turning operation in which the workpiece is machined to its center. It involves moving the cutting tool perpendicular to the workpiece’s axis of rotation. … The closer a cutting tool is to the center of a workpiece, the lower the cutting speed. It approaches zero at the center of a workpiece.

Which direction should a lathe turn?

Which way up do you put your lathe tool ? Cutting edge up or cutting edge down. Conventionally a lathe chuck turns anti clockwise looking from the tailstock at the chuck. This means that the tool in the tool holder will have its cutting edge face up, (at the top).

How many types of turns are there?

The main objective of turning is to reduce the workpiece diameter to the desired dimension. There are two types of turning operations, rough and finish.