Machining Allowance – CNC Precision Machining China Factory

In order to produce qualified parts, the thickness of the metal layer that must be cut off from the blank is called machining allowance. Machining allowance can also be divided into working allowance and total allowance. The thickness of the metal that needs to be removed in a process is called the machining allowance. The total allowance that needs to be removed from the blank to the finished product is called the total allowance, which is equal to the sum of the allowances of each process on the corresponding surface.

The purpose of reserving machining allowance on workpiece is to remove the machining errors and surface defects left during the previous process, such as the surface hardening layer, blowhole, sand layer, oxide skin, decarburization layer, surface crack, internal stress layer and surface roughness after cutting. Thereby improving the accuracy and surface roughness of the workpiece.

The machining allowance has a great influence on the machining quality and production efficiency. The excessive processing allowance not only increases the workload of mechanical processing and reduces productivity, but also increases the consumption of materials, tools and power, and increases the processing cost. If the processing allowance is too small, it can neither eliminate the defects and errors of the previous process nor compensate the clamping errors of the process, resulting in waste products. The principle of selection is to make the allowance as small as possible under the premise of guaranteeing quality. Generally speaking, the more machining is, the smaller the working allowance.

Precision Equipment Components Black Anodized Aluminum Cnc Machining Parts

Cnc Lathe Machining Parts Cylinder Head Spare Parts

Get in touch with us

TopWio has factory equipped with machining center, milling machines, turning machines, EDM machines, Grinding machines. Whether it’s a big quantity order, or a 1 piece CNC Rapid Prototyping Project, we will treat it as our task strictly and deliver it as to your precise requirements, every time.

Send us your precision milling / turning parts machining needs today such as motor shaft parts as well as engine crankshaft accessories, please start reaping the benefits of cooperation! Get Quote!
Direct email: [email protected]

0 replies

Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Blog

CNC Parts Machining Tools (2)
Skill Tips Of CNC Machining
What Are The Basic Machining Methods In Machining Processing
Custom Aluminum Parts Cnc Diesel Engine Parts
Different Types Of Hardware And Stamping Parts
Custom Precision Aluminum CNC Parts
How to ensure the precision parts (3)
Heat treatment of motor shaft parts
Metal Steel Sheet Laser Cutting Bending Welding Stamping Parts