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What is CNC milling?
Milling is a metal cutting process widely used in the manufacturing industry, a common metal cold processing method, and turning is different in the milling processing tool under the spindle drive high-speed rotation, while the workpiece is relatively static. It achieves the desired shape, size and surface quality by using a rotating milling cutter to remove material from the workpiece. Milling is the most commonly used process in machining, with the advantages of high efficiency, precision, flexibility, etc., widely used in aviation, automotive, mold, machinery and other industries.
Milling machine tools are horizontal or vertical milling machines, there are also large gantry milling machines. These machine tools can be ordinary machine tools, can also be CNC machine tools. Cutting with a rotary milling cutter as a tool. Milling is generally carried out on a milling machine or boring machine, suitable for machining planes, grooves, various forming surfaces (such as splines, gears and threads) and special shape surfaces of the die.
Processing objects: plane (horizontal plane, vertical plane, inclined plane), groove (right Angle groove, keyway, V groove, dovetail groove, T groove, arc groove, spiral groove), forming surface, hole (drilling, reaming, reaming, milling) and indexing work.
The difference between turning and milling:
Turning is used to process rotary parts, the parts are clamped on the machine tool spindle through the three-grip chuck, and high-speed rotation, and then use the turning tool according to the bus bar of the rotary body to cut out the product shape. The lathe can also be used for inner hole, thread, bite, etc., the latter two are low-speed processing.
Hi-Precision's "5-Axis Mastery: Where ±0.005mm Meets Aerospace-Grade Perfection"

Why Global Clients Choose Our Milling Services?
Hi-Precision Control
5-axis linkage accuracy of ±0.005mm, which can realize sub-micron cavity processing of minimally invasive medical devices
Equipped with Heidenhain TNC640 CNC system, surface roughness Ra0.4μm.
Speed Redefined
· 5-axis linkage accuracy of ±0.005mm, which can realize sub-micron cavity processing of minimally invasive medical devices
Equipped with Heidenhain TNC640 CNC system, surface roughness Ra0.4μm
Material Versatility
Cover aluminum alloy (6061-T6), stainless steel (316L), superalloy (Inconel 718) to engineering plastics (PEEK) milling process, maximum hardness HRC65 hardened steel.
CNC machining full material map
Metal material :
|
Material category |
Typical grade |
Hardness range (HRC/HB) |
Machining characteristics |
Applicable industries |
|
Aluminum |
6061-T6, 7075-T651 |
HB 60-95 |
High thermal conductivity and easy to stick knife, sharp edge |
Aerospace structural parts, 3C products |
|
Stainless steel |
304, 316L, 17-4PH |
HRC 28-45 |
Work hardening is severe and high temperature resistant coating is required |
Medical equipment, chemical equipment |
|
Tool steel |
D2, H13, S7 |
HRC 45-60 |
High wear resistance, need to reduce cutting heat |
Mold cavity, stamping parts |
|
Titanium |
TC4, TC11 |
HB 330-360 |
Low thermal conductivity, easy to produce debris |
Aero engine blades, medical parts |
|
Brass |
C11000, C36000 |
HB 50-100 |
High viscosity, high speed + large front Angle |
Electrical conductors, radiators |
|
Superalloy |
Inconel 718, GH4169 |
HRC 35-50 |
Extreme heat resistance, high pressure coolant required |
Turbine blades, nuclear components |
|
Cast Iron |
HT250, GGG40 |
HB 170-250 |
Graphite is easy to break, and impact resistant tools are required |
Automotive cylinder block, wear-resistant parts |
Non-metallic material :
|
Material category |
Typical grade |
Hardness range (HRC/HB) |
Machining characteristics |
Applicable industries |
|
Engineering plastics |
PEEK, PTFE, ABS,POM, NYLON |
Low heat deformation, need sharp edge to prevent hair |
Insulation parts, food machinery |
High speed steel/uncoated carbide cutting tools |
|
Composite materials |
CFRP, GFRP |
Fiber delamination risk, high speed and small cutting depth are required |
Drone frame, sports equipment |
Diamond coated tool |
As an experienced manufacturer in the field of CNC fabrication, we provide CNC Milling Service to a full range of industries. Our modern technology and precision CNC machines enable us to produce complex and customized CNC parts for a wide range of industries and applications. We place great emphasis on precision and efficiency to ensure that each CNC part meets our high quality standards. We work closely with our customers to develop custom machining solutions tailored to their specific needs. We have high-quality and reliable material suppliers, the mechanical properties of materials are up to military standards, and the use of advanced testing equipment to strictly control the size and tolerance, at any time to provide you with high-quality non-standard CNC parts in every field. If you are seeking optimized cost, impeccable service, on-time delivery, and 100% quality assurance, Hi-Precision is your Number One source, contact us today!




The main features of milling include:
1. Efficiency: Milling is an efficient processing method, which can quickly remove a large number of materials and improve production efficiency.
2. Accuracy: By precisely controlling the rotation speed of the milling cutter and the feed speed of the workpiece, high-precision processing can be achieved to meet the requirements of various complex shapes and sizes.
3. Flexibility: Milling is suitable for a variety of materials and workpiece shapes, can achieve a variety of processing requirements, such as plane, surface, notch and so on.
Widely used: milling processing is widely used in aviation, automotive, mold, machinery and other industries, is an indispensable process in the manufacturing industry.
Basic milling methods include:

Face milling

Milling groove

Side milling

Copy milling
Advanced milling methods include:

Slope milling

Thread interpolation

Cycloidal milling

Push-pull copy milling

Insert milling

Contour milling

Drilling
Parts suitable for milling process mainly include the following categories :
Surface parts: milling can easily handle all kinds of surface parts, such as the base and platform of mechanical equipment; All kinds of electronic communication equipment, precision instruments, hydraulic tools and other panels, shells, boxes, etc.
Complex shape parts: Milling is suitable for machining parts with complex shapes, such as molds, gears, blades and so on. Through the multi-axis machining center machine tool, it can achieve multi-surface and multi-angle processing.
Slots and holes: milling can process all kinds of slots and holes, such as mold cavities, installation holes of mechanical parts, etc
Non-metallic parts : milling can also be used to process a variety of non-metallic materials, such as plastics, ceramics, glass, etc., suitable for mold, engraving, semiconductor materials and other processing
The following are the milling parts that our company has customized for our customers with CNC machining

CNC Milling electronic enclosure

CNC milling shell

CNC Milling aluminum box

CNC Milling bracket

CNC Milling motor cover

CNC Milling POM Housing

CNC Milling stainless steel parts

CNC Milling aluminum parts
Hi-Precision Machinery Co.,Ltd has ISO9001 quality system certification, has advanced and complete CNC machining equipment and has a professional technical team. High precision and efficiency, high automation reduces processes and greatly reduces processing costs. We support any number of small orders and provide samples free of charge. Quality after-sales service and quick response, shorten the delivery cycle, provide your market competitiveness.
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