CNC Machining, also known as computer numerical control machining, is an automated method to manufacture complex parts with high precision. One of the key processes under CNC machining is CNC turning, a procedure involving rotation of the work piece while the cutting tool progresses towards it in a linear motion. This blog will elaborate on the integral process of CNC turning while providing a glimpse into different types of rivets.
Initiating our discussion, let’s delve into understanding more about CNC turning. Often used when creating rotational or symmetrical sections like cones, contours, and threads, this mechanism ensures dimensional accurateness at optimal speed. There are two ways of carrying out CNC turning- inward (drilling) and outward (boring). The inward approach carves materials located inside the diameter of the work piece while the exterior method contributes to enlarging the external dimensions of the same.
The operation behind CNC turning begins with entering specifications into the machine software, outlining size, speed and feed rate of the cuts. Once these guidelines are set, the lathe spins the material while the tool gradually removes metal from targeted areas. These machines are equipped with several tools like drills, parting-off tools, U-drills, etc., lending them ability to undertake diverse operations concurrently. Hence, components produced by CNC turning exhibit arguably precise alignment, dimension, and finish.
Coming to customised manufacturing, CNC turning remains extremely advantageous for producing metallic or non-metallic types of rivets. Rivets, permanent mechanical fasteners, comprise cylindrical shaft (body) which terminates at head, clutching materials together. They have been traditionally associated with airplane assembly but today find diverse applications ranging from construction to fashion design.
To begin production of rivets using CNC turning, raw material rods are placed in the chuck device of the lathe. Specifications regarding length, head shape, hole placement, among others, are then entered in the CNC software. Turning procedure commences with the lathe rotating at pre-decided speed while tools slice off material as per set directives. The process guarantees output of accurate rivets aligning perfectly to design requirements.
Coming to types of rivets, they broadly fall under five classifications: solid rivets, semi-tubular rivets, blind rivets, drive rivets, and flush rivets.
1. Solid Rivets: Considered strongest among all, these feature a solid shaft which expands to form another head when hit during installations resulting in sturdy joints.
2. Semi-Tubular Rivets: These have a partially hollow shaft which allows them require lesser setting force for installation compared to solids. They are used where high shear strength is required without additional weight.
3. Blind Rivets: Also known as ‘pop’ rivets, these have a hollow mandrel through their core which moves out during placement, splitting the rivet’s tail forming secondary head securing materials together. Their unique structure allows installation from one side only.
4. Drive Rivets: Featuring a short alloy pin with an exposed dome-shaped top, these rivets are placed using hammer or similar tool. Hence, making installations extremely simple without requiring special riveting guns.
5. Flush Rivets: Installed flush against surface material, these rivets create minimal interference to flow control and hence suit aircraft construction needs.
Nowadays, companies have been leveraging CNC technologies like turning not merely due to their capacity for producing large quantities but also for its capability to produce small batches or even single prototypes effectively. Thus confirming that CNC turning is ideal for industries desiring efficient yet precise production.
In conclusion, understanding nuances around CNC turning procedure helps identify smart manufacturing techniques giving businesses competitive advantage for developing products like diverse types of rivets ensuring delivery of superior quality equipment. Remember, the heart of your product lies in its components and detail is everything.
