A Deep Dive into CNC Machining: TIG vs MIG, Chamfer vs Fillet( types of rivets Vincent)

CNC machining has revolutionized the manufacturing industry, offering precision and efficiency in creating a wide range of products. Central to its processes are techniques such as TIG (Tungsten Inert Gas) welding and MIG (Metal Inert Gas) welding, chamfering and filleting, all employed during the fabrication of sheet metal components.

Firstly, let’s delve into the distinction between TIG and MIG welding while understanding how these welding techniques contribute to producing quality sheet metal components.

MIG Welding is characterized by feeding a continuous solid wire electrode through a welding gun with a protective gas flowing concurrently to shield the process from contamination. It offers certain advantages over other welding methods. The speed of welding is significantly higher in MIG welding compared to others like TIG because it uses a continuously feeding filler metal. This makes MIG welding highly efficient for fabricating sheet metal products that require long, straight seems or arcs.

On the other hand, TIG Welding deploys a non-consumable tungsten electrode to create the weld. The formed welded area is then protected from atmospheric contamination with an inert shielding gas, usually Argon or Helium. For complex forms and critical junctures, where the aesthetics and strength both are crucial, TIG welding might be chosen over MIG. Its primary advantage lies in delivering more precise and high-quality results, hence making it most suitable for fine tuning small areas or delicate pieces of metallic sheets.

In conclusion, while MIG works best under time constraints for long stretches, TIG thrives on attention to detail and precision required by intricate designs.

Next, we look at two fundamental concept terms in CNC machining – chamfer and fillet.

Chamfer refers to a symmetric sloping edge created at the intersection of two surfaces, often used to ease the transition between them. It is typically used in manufacturing for aesthetic purposes, or to render sharp edges safer, and can be applied during sheet metal fabrication before assembling products together.

A fillet, on the other hand, is a rounding off of an interior corner of a part design. Fillets enhance component strength by providing a smoother path for stress flow compared to abrupt corners that concentrate stress points. This selection between chamfering and filleting generally hinges upon the final attributes required of the product being manufactured with respect to aesthetics, safety requirements, and load-bearing capabilities.

The process of sheet metal fabrication entails several stages including welding, bending, forming, and assembling to turn raw sheets into functional parts. Within many industries, such as automotive and electronics, this method aids in producing everything from small components to large assemblies using precision CNC machines.
cnc turning, glass bead blasting, types of rivets

In brief: TIG Welder vs MIG welder debates are settled based on time-versus-quality consideration; Chamfer and fillet decisions hinge on aesthetic, safety, and stress-flow specifications while fabricating sheet metals in CNC machining. Incorporation of these concepts leads to precision outputs which have propelled CNC machining to its elite market-standing today.

As CNC technology continues to evolve, the application of these methods becomes increasingly streamlined, pushing towards accuracy, efficiency, and yield maximisation. Stay abreast of these dynamics to capture value and maintain competitiveness within the industry.

Want.Net Technical Team

Want.Net Technical Team

The Want.Net Technical Team has diverse members with extensive education and training in CNC machining. They prioritize precision, efficiency, and innovation to provide high-quality manufacturing solutions globally.

Push Your Order into Production Today!

Table of Contents


You’re one step from the  factory-direct price of part manufacturing services.