CNC Machining Services
IDEAL provides a variety of precision CNC machining services including milling, turning, EDM (electrical discharge machining) and wire EDM, and surface grinding. With precision 3-, 4- and 5-axis CNC machining centers, combined with other advanced capabilities and our experienced team, we can handle technical aspects of creating your prototypes and parts, so your team can focus on bringing your product to market. If you need a precision machining company for plastic and metal CNC machining parts, Contact us today to get your manufacturing solution and details.
Compared with CNC turning, CNC milling, especially 5 axis milling can be used to create complex 3D shapes or to apply a machined surface or features to parts made both plastics and metals. The advantage of multi-axis milling machines makes CNC milling process versatile, as well as accurate and repeatable, for creating many different types of part features of complex geometries. Example include holes, curves, slots, angled shapes, and channels. Milling is also ideal for making tooling for pressure die casting and plastic injection molding.
CNC lathes allow us to get high-speed turning of both plastics and metals from bar or block material. The turning process allows the production of complex external and internal geometries, including generating all kinds of threads. For any round shaped components, for example, shafts, worms, spheres, CNC turning is a more efficient method compared with CNC milling.
Electrical Discharge Machining (EDM)
Electrical discharge machining (EDM) is an essential manufacturing process used primarily on tool steels for plastic injection molding or pressure die casting. EDM uses a conductive graphite or copper electrode submerged in a dielectric bath of water or oil. When a high voltage current is applied to the electrode it sparks against the tool wall, etching away at the surface to produce deep holes, ribs, undercuts and surface textures that are difficult to machine conventionally. When done properly, EDM can produce excellent surface finishes with tight tolerances, virtually eliminating the need for secondary polishing.
5-axis CNC machining
Multi-axis CNC machining centers come in three variations: 5-axis indexed CNC milling, continuous 5-axis CNC milling and mill-turning centers with live tooling.
These systems are essentially milling machines or lathes enhanced with additional degrees of freedom. For example, 5-axis CNC milling centers allow the rotation of the machine bed or the toolhead (or both) in addition to the three linear axes of movement.
The advanced capabilities of these machines come at an increased cost. They require both specialized machinery and also operators with expert knowledge. For highly complex or topology optimized metal parts, 3D printing is usually a more suitable option though.
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Advantages of CNC Machining
Variety of Production-grade Materials
CNC prototype machining can use a variety of production-grade plastic and metal materials, which allows engineers to use the same (or similar) materials as the final part to make prototypes to test the product’s performance, function, and manufacturing cost.
Consistently Surface Finishing
Prototype machining provides a consistently smooth surface finish with a typical machined surface roughness of Ra 1.6μm and super-finish machined surfaces up to Ra 0.2μm. additional costs.
Highly Accurate Parts With Tight Tolerances
CNC machining can create parts with greater dimensional accuracy than most other common manufacturing technologies. During the final finishing machining steps, material can be removed from the workpiece very accurately, achieving very tight tolerances.
One-off Custom Parts & Prototypes
In contrast to formative technologies (Injection Molding), CNC machining does not need any special tooling. So, the on-demand production of custom one-off parts and prototypes is economically viable. This is especially relevant for one-off custom metal parts and prototypes, where CNC is the most cost-competitive solution.
How CNC Machining Works
CNC machining starts with a computer, on which designers prepare a part using CAD (Computer-aided Design) software. This digital part is then converted into a format that can be recognized by a CNC machine.
Instructions are sent to the CNC machine in the form of “G-Code” after which the machine can start cutting.
Most CNC machines have a “worktable” and work holding device to keep a block of material — known as the “workpiece” — in place. The worktable may or may not move, depending on the style of the machine.
When machining starts, the cutting tool makes contact with the workpiece, cutting away layers of material. The tool and/or workpiece is moved and/or rapidly rotated according to the G-Code instructions so that cuts are made in exactly the right places until the part is finished.
CNC Machining Tolerances
With a wide range of CNC machines, we are able to provide stand tolerance CNC machined parts with the most economic price and super precision machined parts for the high-end products. When working with IDEAL, we guarantee all parts will be made accordingly to your specification. If 2D drawings are not available, you can also indicate with ISO 2678 as well.
|Limits for nominal size||Plastics (ISO 2768-m)||Metals (lSO 2768-f)|
|0.5mm* to 3mm||±0.1mm||±0.05mm|
|Over 3mm to 6mm||±0.1mm||±0.05mm|
|Over 6mm to 30mm||±0.2mm||±0.1mm|
|Over 30mm to 120mm||±0.3mm||±0.15mm|
|Over 120mm to 400mm||±0.5mm||±0.2mm|
|Over 400mm to 1000mm||±0.8mm||±0.3mm|
|Over 1000mm to 2000mm||±1.2mm||±0.5mm|
Aside from standard tolerance CNC parts such as ISO2678M or ISO2678F, IDEAL also offers high-precision CNC machining parts. With high precision milling & turning machines, we are able to catch super tight tolerance for prototype machining & production.
How IDEAL to Improve the Precision of CNC Machining?
Reasonably design the structure of the parts to reduce the stress concentration during machining and improve the accuracy of the parts.
Heat treatment of materials to improve strength and reduce internal stresses, and controlled machining processes to reduce or eliminate machining defects.
Upgrading to a 5-axis machine or a 3+2 configuration is one of the fastest ways to improve the speed and accuracy of CNC machining.
Well-designed jigs and fixtures ensure repeatability of machining accuracy and improve machining efficiency.
Upgrade and maintain the machine and ensure that it has a flat, thermally stable and robust base to absorb vibrations.
The correct selection and use of tools is essential to improve the dimensional stability of machining.
CNC Machining Materials
We have more than 30 engineering-grade plastic and metal materials that are suitable for CNC machining applications in various industries.
Stainless steel 303 | Stainless steel 304 | Stainless steel 304L | Stainless steel 316 Stainless steel 316L | Stainless steel 301 (spring-tempered stainless steel) | Stainless steel 17-4 PH | Stainless steel 430 (magnetic) … (non-exhaustive list)
Aluminum 6061 | Aluminum 6060 | Aluminum 6082 | Aluminum 7075 | Aluminum 2024 | Aluminum 5060
Aluminum 5050 | Aluminum 2027 | Aluminum 6063 | Aluminum 5083 | Aluminum 1060
Aluminum XXXX T1 to T6
… (non-exhaustive list)
Copper / Bronze / Brass
Copper | Bronze | Brass
ABS | PMMA | (opaque or high polished transparent) | PC (opaque or high polished transparent)
| PC | POM | POM | PP | PP 30% glass-fiber-filled | ABS/PC | PA6 | PA66 | PA6 30% glass-fiber-filled | PBT
PBT 30% glass-fiber-filled | PPS | PEEK | ULTEM 1000 | ULTEM 2300 | PEI | PPSU | PTFE (TEFLON) … (non-exhaustive list)
CNC Machining Finishes
We support one-stop surface finishing to meet the visual and functional requirements of any design. Including sanding, sand blasting, mirror polishing, painting, printing, laser etching, anodizing, electroplating, chroming, powder coating, etc.
Our Maxime Size Range of Your Machine Ability
Maximum Dimensions (3-axis milling): 1270×508×635 (mm).
Maximum Dimensions (5-axis milling): 450×700×400 (mm), Worktable Diameter Φ400 mm.
CNC Machining FAQ
Q: Is CNC machining expensive?
A:The price of your CNC machining projects depends on the product’s complexity and the number of parts you want to make. For example, if you’re making a part that has a combined machining and material cost of $2 and a setup cost of $200, one part will cost $202. However, if you make 200 parts, each would cost $3!
Q: What Determines CNC Machining Cost?
As CNC machining is a subtractive process, it tends to use more material than what will be on the final product. Machinists buy these materials in blocks, and they calculate the prices per block.
Plastics are cheaper to use for CNC machining due to the lower average price for the bulk materials and the shorter machining times due to their lower hardness. Plastics like ABS, Nylon 6, and POM (Delrin) have approximately the same bulk costs as Aluminium 6061, although they might cost a little higher per block. Plastics like PEEK are really expensive and should only be used when absolutely necessary.
2. Machining Cost
Machining costs also depends on two factors: the price of the machine and the number of hours the machine is expected to operate in a year (which is 5000 hours on an average). The machinists divide the machine’s price by the number of hours it will operate in a year to determine their machine shop rates (also known as the machining cost per hour).
The programmer who converts the CAD file into a CAM file to help the CNC machine understand the design. All this expertise will come at a price. Also, The cost of set up depends on the quantity of the parts to be produced. After production, your production will require some assembly and transportation to your desired location. These processes will involve some manual labor which incurs additional costs.
Q: How to Reduce CNC Machining Cost?
A:1. Reconsider Material
The material you’ll use for your product is a huge determinant in CNC machining costs. You should consider the price of the material before choosing it for the production process. Also, the machinability of the material is very important. This determines the machining time, which in turns, affects the CNC machine shop hourly rates for your production process.
2. Optimize Design
The complexity of your design determines the length of the machining times, which, in turn, affects the costs. To minimize the complexity of your design, you can consider the following questions before sending the design for quoting:
– Is my part optimized using the Designing for Machinability guidelines?
– Are all features in my model necessary? Can I remove or simplify any of them and still retain full functionality of my part?
– Can my design be split into multiple parts that are easier to CNC machine and then assembled?
– Is there a way to modify my design to eliminate the need for multiple machine setups or special tooling?
– Is there a less expensive or easier to machine material that can fulfill my design requirements?
Q: What information do you need to quote my part?
A:In order to provide a meaningful quote, we require the following information:
We accept CAD data in any format, 2D and 3D, including STP, IGES, X_T, DWG, PDF, STL; The expected quantities, machining processes, and raw materials required; Any necessary secondary operations, including finishing specifications, heat treatment, anodizing or plating, etc.
Any applicable customer specifications, such as First Article Inspection, PPAP requirements, and required outside process certificates;
Any other useful information, such as target pricing or required lead times.
Q: How quickly can I receive a quote from you?
A:In most cases, we will respond to your quote within 1 business day. The best way to help ensure a quick quote is to provide as much accurate and specific information as possible.
A:In fact, there is no standard delivery time and we will schedule production based on the current workload. Once your purchase order is received, documentation is completed, and materials are available, we will provide prompt feedback on the exact delivery time, which can usually be anywhere from 3 business days to a few weeks, depending on the complexity of the part and quantities of parts ordered.
Request Your Free CNC Machining Quote Today
Our improved algorithm decreases CNC Machining quotation times by up to 90%. Most quotes are delivered within 24 hrs. and usually much less, depending on project details.
Your customer support partner will contact you directly to ensure you’ve received and understand all aspects of your quotation and to answer any questions you may have.
Our complete CNC aluminum service will accompany your aluminum machining project from the prototype construction to the ended aluminum parts manufacturing.
+86 0755 36957776
102, 41 block, No 67 Banggang Road, Dongfang Community, Songgang, Bao'an District, Shenzhen, China
Room 1508, Aran Center Office Seond Phase 15, Nathan Road 625, Kowloon, HongKong