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CNC Machining for Aerospace

The extremely high level of precision needed within the aerospace industry makes CNC machining a suitable manufacturing process for the sector.

 

This article provides you with a complete guide to aerospace machining and its importance.

 

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CNC Machining eBook

If you want to produce high-quality machined parts with a sleek appearance, it’s essential to consider some critical factors related to CNC machining. 

 

Here, we’ve gathered some basic information and important considerations to help you achieve the desired results.

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Instant Quote for Sheet Metal Fabrication and New Homepage

Exciting news from RapidDirect!  We’ve rolled out two exciting updates to enhance your manufacturing journey. 

  • Instant Quote for Sheet Metal Fabrication
  • A brand-new Homepage Experience

How Custom Sheet Metal Increases Your Profit

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Published:  May 26, 2020         Reading Time:  About 3 minutes

This article looks at how you can carry out sheet metal fabrication in the most cost-effective way, maximizing your company profits.

Sheet metal fabrication is a collection of manufacturing processes used to manipulate sheet metal. Processes include bending, punching and welding, which we can carry out in sequence to create complex functional parts with multiple features.

Ordering custom sheet metal parts doesn’t have to be expensive. In fact, with a reliable metal cutting service partner like RapidDirect, custom sheet metal can actually help you increase your profit.

From designing parts in a cost-effective manner to choosing the right sheet metal materials, here’s how to use this manufacturing process in an economical way.

Choose the right sheet metal material

You’ve got your concept and a roadmap for bringing a product to market. But one of the most difficult issues faced by designers is choosing a sheet metal material.

RapidDirect offers sheet metal services with a variety of materials, including several grades of aluminum, copper, brass, steel and stainless steel.

sheet metal materials

But choosing the right metal depends on several factors.

When deciding on their choice of sheet metal, designers should consider:

  • Will the part be a prototype or end-use part?
  • Does the part need to be strong and rugged?
  • Does the part need to be chemically resistant or heat resistant?

In many cases, it is possible to substitute an industrial-grade stainless steel with a more affordable aluminum grade without compromising the integrity of the part.

To find a cost-effective metal grade suited to your unique needs, speak to us directly.

Use loose tolerances

Custom sheet metal parts often consist of bends, holes, slots and other features. Some of these features will be critical to the function of the part, while others may not be.

When designing sheet metal parts and getting parts manufactured, it is highly important to distinguish between critical and non-critical features.

sheet metal standard tolerance

The importance of each feature should be reflected in its specified tolerance.

Designers should only specify tight tolerances if a lack of accuracy would seriously compromise the part. When this is not the case, allowing for a looser tolerance can lead to dramatic cost savings, since the manufacturer can perform the metal cutting service in a shorter timeframe.

Only use tight tolerances where absolutely necessary.

Bend simply and uniformly

Most sheet metal parts contain at least one bend — a feature usually provided by a machine known as a brake, which clamps the sheet metal in space before bending it along a specified line.

Sheet metal bending can dramatically vary in cost, depending on the number and type of bends required.

To create cost-effective custom sheet metal parts, you need to make your bends simple and uniform.

sheet metal bending

The first trick here is to make bends that are easy to carry out and which will maintain their form over time. In practice, this means avoiding small bends on thick sheets, because these are difficult to execute.

Most brakes can accurately bend metal up to 120 degrees, and a good rule of thumb is to design a bend radius no smaller than the thickness of the metal.

Also bear in mind that it costs more to carry out multiple bends with different angles. If it is possible to maintain uniform bend angles throughout, you’ll reduce labor costs and be in a better position to maximize profit.

Choose a standard gauge

When making custom sheet metal parts, it pays to adapt your parts to the available sheet metal, rather than making sheet metal accommodate your parts.

In other words, try not to design parts that require nonstandard sheet metal gauges. Doing so will add a dramatic cost burden to your project that may be entirely avoidable.

sheet metal standard gauge

If it is at all possible to design parts that utilize common metal thicknesses, you should do so.

Furthermore, lower gauges are easier to manipulate, since thinner metal is more pliable and cuttable. Unless your part requires an especially high level of strength, it may be cost-effective to use thinner sheet metal.

Work with RapidDirect

Whether it’s custom CNC wheels or an order of custom sheet metal brackets, RapidDirect provides a metal cutting service suitable for customers large and small.

Our sheet metal service is fast and reliable. We offer sheet thicknesses ranging from 0.5 mm to 20 mm, with sheet dimensions up to 6,000 x 4,000 mm. Your quotes with us are returned within 12 hours, and we offer lead times as short as three working days.

Furthermore, our custom sheet metal parts can be finished with anodizing, bead blasting, powder coating and electroplating.

Get a free sheet metal quote today.

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