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What is machining in the manufacturing process?

Views:1     Author:Site Editor     Publish Time: 2021-02-18      Origin:Site

Various machining operations and processes are required to remove excess material during parts manufacturing. These machining operations are usually mechanical and involve cutting tools, grinding wheels, and disks. With the latest developments in additive manufacturing, machining has recently become known as the "subtractive" process to describe the process by which it takes material away to make a finished product.

 

There are many kinds of machining in the manufacturing process. We will shows as follow:

 

Turning machining

 

Turning is a machining process performed by a lathe. The lathe rotates the workpiece as the cutting tool moves over it. The cutting tool works along two axes of motion to create a cut with precise depth and width. There are two types of lathes, traditional, manual, and automatic computer numerical control (CNC).

 

Drilling/Boring/Reaming machining

 

Drilling is a machining process that uses a drill bit to produce cylindrical holes in a solid material. This is one of the most important machining processes, as the resulting holes are usually designed to aid assembly. A drill press is usually used, but a drill bit can also be stuck into the lathe. In most machining operations, drilling is the first step in the production of finished holes, which are then tapped, reamed, bored, etc., to form threaded holes or to make the hole sizes within acceptable tolerances. Bits usually cut larger holes than their nominal size, and because of the bit's flexibility and its tendency to run with the least resistance, these holes are not necessarily straight or round. Therefore, it is common to specify that the hole size is too small and then perform other machining operations to enlarge the hole to the final size.

 

The bit used has two spiral channels that extend along the axis of the bit. It is called the "chip" and it takes chips or chips out of the hole as the drill bit enters the material. For each type of material, there are recommended drilling rates and feed rates.

 

Milling machining

 

Milling uses a rotating tool to remove material, which is different from turning machining without a rotating tool. A conventional milling machine has a movable table on which the workpiece is mounted. On these machines, the cutting tools are fixed and the table moves the material so that the required cutting can be performed. Other types of milling machines use both the table and the cutting tool as movable tools.

 

The two main milling machining operations are slab milling and end milling. Flat milling uses the outer edge of the milling cutter to cut the surface of the workpiece flat. The keyways on the shafts can be cut using a similar tool, although the tool is narrower than a normal slab tool. In contrast, end milling cutters use the end of the milling cutter. Special cutters can be used for a variety of tasks, such as ball cutters for milling curved wall cavities.

 

Polishing machining

 

Grinding is used to remove small amounts of material from flat and cylindrical shapes.

 

A cylindrical grinder holds the workpiece in the center and rotates it while applying the outer edge of the rotating grinding wheel to it. Centerless grinding is used for the mass production of small parts whose ground is unrelated to any surface other than a whole. Ground 200-500 minutes.

 

Plane machining

 

Planing is mainly used for machining large surfaces, especially those to be scraped, such as machine tools. The small parts that are fixed together in the fixtures are also economically planned.

 

Sawing machining

 

The sawing machining process of metal is usually done with cutting machines to produce shorter lengths from bars, extruded profiles, etc. Vertical and horizontal band saws are common and use continuous rings of toothed bands to cut through the material.

 

Other cutting machines include power hacksaws, grinding wheel saws, and circular saws.

 

Broaching machining

 

Broaching machining is used to produce square holes, keyways, spline holes, etc. Broaching consists of a number of teeth arranged in sequence, almost like a file, but each successive tooth is slightly larger than each previous tooth. Pulling or pushing through the prepared guide hole (or across the surface), the puller makes a series of progressively deeper cuts.

 

The machining process, not just a simple mechanical process, it including different processes that wildly use in manufacturing industries. We use the machining process to produce wheels, V-groove wheel, and trailer parts. Please contact us for price and sample.


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