All About Undercut Machining For CNC Machined Parts

 

With the help of technological advancement, machining services are more effortless. Equipment such as CNC machines helps in reducing the machining workload. Also, the product produced is of high quality with desired aesthetics. Most plastic and metal parts are compatible with the machine, easing production costs. However, undercut parts need specific considerations while handling them. At Creatingway, we offer essential tips concerning undercut machining. Here is further insight into the process.

How To Define Undercut Machining Process?

The method involves the creation of recessed aspects in a machined part. Some standard cutting tools like end mills can’t create undercuts. It may also seem impossible to design undercut parts. But the process aims to administer suitable functionality traits in numerous machined parts. More costs incur as you tend to manufacture precise undercut standards. Therefore, undercut machining saves on prices as the procedure contains specialized tools like lollipops and slot cutters. The tools help in achieving the needed specifications in making undercut parts.

Types of Tools Used in Undercut Machining

• Lollipop Cutters and Slot Cutters

The shape of these tools allows them to create undercuts, unlike outdated tools. Whereby their shaft is narrow with a wide end tip. A lollipop cutter has a rounded tip, while the slot cutter is flatter. Additionally, manufacturers can measure the distance between the shaft edge and the outer end during undercut machining. Such an act helps in determining the overhanging length needed to be cut. By using lollipop cutters, we cancan machine curved undercut shapes. Also, the edges are wildly applied in deburring a workpiece. To obtain more spherical undercuts, use blades with thinner necks. The thinness offers a larger wrap angle providing ample clearance.

Unique Cuts in Undercut Parts Machining

• One-Side Undercutting

This unique cut uses a CNC undercut tool to create asymmetrical undercuts in a workpiece. The one-side undercutting leads to the formation of a sideway cut. While using such a technique, consider clearance as a crucial factor. The consideration enables the CNC undercut equipment to function correctly.

• T-Slot

The shearing tool helps in making T-shaped undercuts. Such a creation involves interlinking vertical shafts to flat horizontal blades. The aspects allow the device to cut in any direction horizontally – a T-shape forms resulting from the action.

• Dovetail

With the aid of angled blades, dovetail-cutting tools produce undercut parts. The formed cuts are trapezoid-like similar to a dovetail shape. The undercut has a wide bottom and a narrow top. Such a method makes angles 45 and 60 degrees.

Essential Tips for Undercut CNC Machined Parts

• Create Shallow Undercuts

There usually is a limit on how deep the cutting tools can venture. The reason is that most of the blades are connected to the vertical shaft. Thus, make shallow undercuts that suit your cutting tool.

• Partner with Experts

by working with professionals, your work gets easier. Experienced workers know which tools to use while machining undercuts. Also, using the right tools reduces the risk of errors. Such a depreciation improves quality and lifespan.

• Eradicate Necessary Undercuts

It is advisable to avoid undercuts while staging the design of a workpiece. These undercuts add to the complexity of the plan. Also, forming the undercuts requires specific tools, which incur extra costs. Thus, by eradicating the cuts, your work becomes more accessible with lesser expenses.

• Avoid Using Custom Tools

Custom tools take time to manufacture hence delaying the general production process. Additionally, most of the equipment is for one-time use, and their frequent use is costly as one requires a different one in each production process. Therefore, it is best to avoid custom tools while designing undercut aspects.

Both CNC Milling and CNC Turning Process for Undercuts Feature

• CNC Milling with Undercuts

The cutting tools in milling get fixed at the spindle. In other scenarios, part of the material is cut off. It happens when the piece isn’t quite visible from the angle of the spindle. Only some unique tools can tool get behind the visible part.

• CNC Turning with Undercuts

The turning procedure uses an undercut as a recess in diameter. Then it occurs on the internal diameter of a machined portion. The length of undercuts is under the guidance of the rule of thumb. The minimum size covers 1.5 threads and has a diameter of 0.38mm, smaller than the thread. Also, to achieve cutting tool clearance, place the undercut at the posterior part of the shaft or screw.

Some Uses of Undercuts Parts For CNC Machining Parts

Most manufacturers use undercuts during the machining process to achieve the functionality of machine parts. Therefore, undercut machining becomes essential for parts requiring;

• Medical devices requiring barb fittings
• Custom inserts to achieve distinct design features
• Consumer electronics require side holes
• Vertical threads using hoses and other connectors
• To the easy assembly of interlocking features

In conclusion, at Creatingway, we handle CNC machined parts with undercuts using experienced experts. With special tools, we can use DFM to manage complex undercutting tasks. Also, desired quality is assured with precise dimensions and at an affordable cost. Kindly consider Creating while machining parts requiring undercuts to achieve superb results.

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