The mistakes to avoid in precision CNC machining of parts

In CNC machining, as in all manufacturing processes, it is essential to limit the complexity of procedures and tasks, eliminating all elements that are not necessary to reduce production time and cost to the maximum possible extent. 

One of the most common errors in this technology is the manufacturing of parts that are difficult to machine or have thin and tall walls. On the other hand, raised text or small text should also be avoided, as they usually incur additional costs and, the smaller they are, the greater the difficulty in their execution.  

Tolerances in CNC machining: How do they work?

In CNC machining, tolerances can be defined as the acceptable range in which a parameter can deviate from its expected value. This concept encompasses both measurable physical properties such as temperature or stress, as well as physical dimensions such as space definition.  

Tolerances in CNC machining can be used in two contexts. If we talk about CNC machines, it refers to the degree of dimensional precision that a machine can achieve when machining a part and are usually specified by the manufacturer. On the other hand, in terms of design, it is the acceptable range of variation of the part's dimensions that will still allow the functionality of this part.  

There are different types of tolerances such as limit, unilateral and bilateral, or a tolerance system known as dimensioning.  

In short, we can say that tolerances are an essential factor for part and prototype design. However, it is not necessary to tolerate all features of a part, so, to save time and machining costs, it is recommended to apply tolerance only to critical features.  

Surface finishing for CNC machining

In Proto&Go! we highly recommend the application of surface finish treatments on machined parts.  

There are different types of finishes to improve the aesthetic finish of the machined parts and, even, provide other properties (such as protecting parts from oxidation or improving their resistance). 

In our finishes section you will discover all available options: anodizing, sandblasting, polishing, bluing, zinc plating, chrome plating, nickel plating, painting… 

The importance of Inspection Equipment in CNC machining processes

CNC machining has become an essential production technique in numerous industries. However, an important factor in this process is ensuring the production of high quality and precision parts. For this, it is necessary to have specific inspection equipment for CNC machining.  

Inspection equipment is tools used to measure and verify the precision of parts manufactured via CNC machining. They may include manual measuring tools, coordinate measuring machines (CMM), optical measuring machines (GOM)... 

These inspection equipment are necessary to ensure that machined parts meet the required tolerances and specifications and are therefore in full working order. 

At Proto&Go!we offer the best CNC machining service for your parts and prototypes. You can request your quote through our website quickly and easily.  

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