What are standard machining tolerances?
- 16/06/2020
- 15:44
- Jerry Zhang
CNC Machining Tolerance
Important of Machining Tolerance
Referred to dimensional accuracy, you have to specify the machining tolerance for each dimension.
If a part’s dimensions, you produce, that are out of machining tolerances,
The parts will be unusable due to the main features and functions are not according to design idea.
Machining Tolerance Definition
Standard Machining Tolerances
There are many tolerances standards, for example, general tolerance standard, shaft tolerance standard, hole tolerance standard, ball tolerance standard, bearing tolerance standard, bushing tolerance standard, thread tolerance standard, etc
If you're curious about if your parts are ideal for CNC milling services, reach out to our team at once for more details with your email address.
CNC Machining Tolerance Chart
General Tolerance Standard DIN 7168/DIN 2768
Shaft Tolerance ISO286-1
Hole Tolerance ISO286-1
Ball Tolerance Standard DIN5401
Bearing Machining Tolerance Standard DIN5406
Bushing Tolerance Standard NDC
Thread Tolerance Standard GB/T 7307
Socket Hexagon and Square Machining Tolerance
Cast Surface Roughness Table
CNC Machining Production Process Tolerance
CNC Machines
Laser Cutting Machines
3-Axis Mill
4-Axis Mill
Engraving
Surface Roughness (Finish)
Flatness
Workers Operation Is Most Important For Keeping Machining Tolerance
Machining Process
An experienced worker is very important for keeping tolerance.
When he operated the machine to do the machining process,
He has to keep the part specified tolerance and machine tolerance in the heart.
As long as he forgets one of the tolerances,
He cannot program the correct data in the machine,
All the parts will be finished in the wrong dimensions.
Production Inspection Process
Without inspection will also cause a serious accident.
You have to do first article inspection and randomly inspection per 30 minutes,
Otherwise, all the parts are incorrect from the first article to the end.
100% Fully Final inspection Before Package
Even if you do the first article inspection and randomly inspection per 30 minutes during production,
It still has the possibility to c&c machining wrong dimensions,
So the 100% fully final inspection is necessary very much.
The final inspection will check all the dimensions and inspect the wrong parts out.
It will make sure all the dimensions for all the parts are correct when your customer received them.
The China Manufacturer Knows The Machining Tolerance
Trouble for finding good supplier
You always have trouble finding a good China manufacturer.
The China factory can produce the brass machining parts, stainless steel machining parts, aluminum machining parts, and steel machining parts according to your tolerances.
A good supplier in Ningbo
Ningbo Sinster Machine Co., Ltd is the right China high-speed machining manufacturer, who knows the entire tolerance standards very well.
Please visit the website for more information at www.syluecncmachining.com
It’s no worry to send your drawings or samples to Ningbo Sinster Machine Co., Ltd,
You will get a very competitive price in seconds and high accuracy parts.
Email: engineer@syluecncmachining.com
Skype: sylue-machine
Whatsapp: 0086-13858287747
