CNC Turning is an intricate and detailed method of creating customized parts and components using a CNC lathe. Computer Numerical Control (CNC) turning is a highly-skilled, Ultra-precision Engineering process. Based on technological machine tools in the world – the lathe – turning in its traditional form can be traced back to 60s
Through modern computer technology and skilled operators, a component can now be created to the minutest details and to the most rigid of designs using a Turning Lathe, with precise tolerances and a vast array of shapes. The turning lathe secures and rotates the stock, or raw material, being machined along a dual-axis of movement at high speeds, while a single-point cutting or boring tool shapes the material, resulting in the desired component being created. The lathe is controlled by computer programs; ensuring meticulously exact components are produced, and can also be reproduced. At LANLI, we pride ourselves on being experts in the latest CNC Turning Technology and Processes, and on our ability to create the components our customers demand swiftly, efficiently and precisely.
CNC Turning Tolerances
CNC Turning can create parts with greater dimensional accuracy than most other common manufacturing technologies. … The standard tolerance of any dimension in CNC machining is ± 0.125 mm. Features with tighter tolerance down to ± 0.050 mm can be manufactured and even tolerances of ± 0.025 mm are feasible.
LANLI offers fast and accurate CNC turning services.
Our specialized CNC turning department consists of state-of-the-art CNC lathes. Coupled with our highly experienced machinists, we can program even the most complex turning operations.
Most of our customers supply their own drawings, but if you don’t have your own, we can take your ideas and turn them into parts using ours in house CAD/CAM capabilities.
Our Research & Design Department will help to analysis the technologies, which can save at least 30% time.
11 Main types of CNC Turning Operations.
There are many types of CNC turning operations for CNC lathe services can be performed on a live tooling lathe, including Hard turning, Parting, Facing, Boring, Reaming, Taper turning, Drilling, Knurling, Threading, Grooving, etc., comes in varying tools, cost and set-up time.
1, Tapered turning: produce a cylindrical part of which diameter decrease from one end to another.
2, Hard turning: suited for materials with a Rockwell C hardness greater than 45, typically performed after heat treated.
3, Spherical generation: create a spherical finished surface, turning around a fixed rotary axis.
4, Facing: a turning operation in which the workpiece is machined to its centre.
5, Parting: create deep grooves that remove a completed or part-complete component from its parent stock.
6, Grooving: similar to parting, but only cut to a specific depth from outside or inside of the workpiece.
7, Drilling: remove materials to drill holes from the inside of a workpiece with drill bits held stationary in the tailstock or tool turret of the lathe. Boring: enlarge or smooth an existing hole.
8, Knurling: cut serrated pattern onto the surface of workpiece with knurling tool, to change or enhance the visual effect or hand grip.
9, Reaming: remove a small volume of materials from a drilled hole, for highly accurate diameters.
10, Threading: turn standard and non-standard screw threads, generally means single-point threading.
11, Polygonal turning: non-circular forms machining operation without interrupting the rotation of the raw material.
What parts need CNC Turning?
There is no question that CNC Milling and CNC Turning are very different processes that will in most cases end up with entirely different results. CNC Centres are ideal for short-run volumes and especially prototypes and parts that are below 2.5” while the turning centre can be able to work on parts that are over the 2.5” OD, they will need to be checked individually and depending on the volume of the parts that are being produced, it can have an upward impact on the price of production. Also, if the part is less than 1.25” OD, turning might not be the option for producing that part. However, it is important to note that the biggest factor that determines if the piece can be produced by CNC Turning is the volume. The higher the volume the less suitable the part is suitable to be produced by turning.
If you’re not sure if your part should be best produced by CNC Turning or CNC Milling, it is important to seek a second opinion. It is also essential to understand that different CNC Centres have different tooling and spindle options and this could affect the likelihood of the part being produced in such a centre. Other factors that might determine the fate of the part are the diameter limitations, power and even speed capabilities will also affect the economic aspect and the type of part that can be produced.
If you are looking for more information on What is CNC Turning? Or looking forward to cooperation, get in touch today on +86 180 6988 5563 or email [email protected]
What materials can be CNC Turned?
CNC turning service can be applied on a wide variety of materials, including metal, plastic and wood. Different lathes are needed for turning metal and wood. According to the types of materials machined, certain maintenance and safety precautions may be required for the lathe. Here are some common CNC materials as below.
Metals: aluminium, magnesium, steel, stainless steel, brass, copper, bronze, titanium, nickel alloy, etc.
Plastics: nylon, polycarbonate, POM, ABS, etc.
Can be processed into a square, round combination Parts of complex structure.
What’s the differences Between CNC Milling and CNC Turning
Turning and milling, at first glance, appear to be very similar processes and achieve similar results. So, what is the difference – and why do we offer both processes?
Put simply, the difference between the two processes comes down to which part moves – in general terms, the metal or the machine.
With CNC turning a metal bar is fed into the lathe and rotates at speed while a single-point cutting tool removes portions of the metal to create the desired shape.
With milling, the metal usually remains still while multi-point cutting tools rotate around it.
CNC Milling and CNC Turning allow users to create patterns and add detail to metals that are impossible to do by hand. CNC Milling uses commands, codes programmed into the computer and set to run. The mill then drills and turns along axes to cut materials to dimensions entered into the computer. Computer programming allows machines to make precise cuts, users can manually override the CNC Machines to slow or speed up the process.
In contrast, CNC Turning uses computer-controlled machines to create a different final product. The process uses a single-point cutting tool that inserts parallel to the material to cut. The material is rotated at changing speeds and the tool cutting traverses to create cylindrical cuts with exact measurements. It is used to create circular or tubular shares from larger material pieces. It is an automated process and speeds can be adjustments for greater accuracy rather than turning a lathe by hand.
Why Choose LANLI Turning Services?
Productivity – We can manufacture parts from a broad range of metals, alloys, and plastics, ensuring that can be turned them into parts
CAD/CAM capability- We perform many secondary processes in-house and can also manage standard parts from our brother factories, this help to simplify the parts acquisition process for you. Especially for the complex parts, it can save much time and money.
Versatility -Our in-house lathes can turn parts up to 30” in diameter. Regardless of the size and complexity of your CNC turning project, LANLI has the in-house talent and technology to cost-effectively fulfil your CNC turning needs.
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