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By Jerry Zhang
CNC lathe machining is a procedure for change the workpiece’s dimensions. There are two categories according to the difference of processing method, One is CNC lathe machining, the other is press working.
What is CNC lathe machining
1. CNC lathe machining definition
CNC lathe machining is a procedure for change the workpiece’s dimensions. There are two categories according to the difference of processing method, One is CNC lathe machining, the other is press working. Name:
CNC lathe machining Function: Change the workpiece’s dimensions Category:
CNC lathe machining, Press working Technics Process: Casting, Forging, Stamping, welding 2. Catalog:
(1) Fundamental process
(1.1) Productive Process
(1.2) Productive Category
(1.3) Process Planning
(2) The instruction for benchmark
(3) CNC lathe machining Processing Cushion
(4) Scope of application
(5) Types of equipment
(6) China CNC lathe machining manufacturers
3. CNC lathe machining fundamental process
(i) Productive Process
Types of equipment productive processes are the process for making the products from raw material (unfinished blanks).
Types of equipment productive process include raw material transit and storage,
CNC lathe machining production preparing, unfinished blank making,
Precision parts’ CNC lathe machining and heat treatment, precision parts’ assembling, test, painting, and package, etc.
In the productive process, there is a technical process.
Technics process is the process to change the workpiece’s shape, dimensions, positions, and character, etc, and make the workpiece to finished precision parts or unfinished blanks.
Technics process is a key part of the productive process.
Technics process includes casting, forging, stamping, welding, CNC lathe machining, assembling, etc.
Types of equipment production technics process include precision parts’ equipment production technics process and types of equipment assembling technics process.
Others are auxiliary processes, for example, transit, storage, power supply, equipment repair, etc.
Technics process also consists of one or several tactic processes, one process consists of several steps.
A process is an elementary unit for types of equipment production technics process.
Process definition is the technics process, that one worker (several workers) finish production continuously on one machine (or one position) for the same workpiece (or several workpieces).
The main characteristic of the process is that it doesn’t change the workpiece, types of equipment, or operator, and continuously.
The step is based on the same CNC lathe machining surface, the same CNC lathe machining tools and the same volume of feed
The Feed is a working process, which is a step for production finish on the workpiece’s surface by tools.
When making the types of equipment’s technics process, you have to make sure how many steps the workpiece needs and the sequence.
Technics flow is a simple process of key processes and sequences.
Technics flow is very important for making technics process,
Its function is to select the correct processing method for each surface, make sure the sequence of each surface, and the number of processes.
(ii) Productive Category
Productive Categories are usually divided into three categories,
a. Single workpiece production:
Manufacture different structures’ and dimensions’ workpiece separately, and seldom repeat. b. Batch production:
Manufacture the same structure and dimensions’ workpiece among one year, there is some repeatability in the manufacturing process. c. Mass production:
The quantity is huge, manufacture the same process in the same place. (iii) Process planning
1. Every technological procedure is planned to make sure the quality of precision parts (types of equipment assembling), And reaches all the specifications as the drawing requests. 2. The technological procedure should have high productivity, The products made by technological procedures should be launched as fast as possible. 3. Try our best to decrease the production cost 4. Pay attention to reduce the intensity of labor to ensure production safety. Raw data
1.Assembling drawing, precision parts drawings
2.Inspection quality standard
3.Yearly production program
4.Conditions of manufacture, including types of equipment and specification, performance and current status, workers’ technological level, power and water supply, etc.
5.Process planning, manual, and standard.
6.Advanced manufacture data
1. Analysis product’s assembling drawing and precision parts’drawings.
2. Confirm the blank
3. Make technics flow and ensure the position reference surface
4. Prepare the types of equipment according to each preocess
5. Prepare the blades, jigs, measuring implement, and auxiliary tools
6. Ensure the specification and inspection method for each process
7. Ensure the allowance for CNC lathe machining, calculate the size and tolerance
8. Ensure the cutting parameters
9. Ensure the production time
4. The instruction for benchmark of CNC lathe machining
Precision part consists of several surfaces,
When analyzing the relative relation of the surfaces, you must confirm a benchmark.
Benchmark is a dot, line, and surface to confirm the part’s dot, line, and surface.
According to the different functions of the benchmarks, there two categories,
One is the design benchmark, the other is the technical benchmark.
1. Design benchmark:
The benchmark to confirm the dots, lines, and surfaces on the drawings 2. Technics benchmark:
The benchmark for production and assembling. 3. Assembling benchmark:
The benchmark for confirming the parts’ position in the products when assembling 4. Measure benchmark:
The benchmark for inspecting the sizes and position 5. Locate benchmark:
The benchmark for CNC lathe machining. 5. CNC lathe machining Processing Cushion
When the blank is made to finish the product, you will be machining out the metal layer,
The total of the metal layer is called the total processing cushion.
The metal layer of every process is called process cushion.
As to the circle and hole, the processing cushion is on the diameter, called symmetry cushion.
The reason, why the workpiece has the processing cushion, is to CNC lathe machining out the tolerance or defect on the workpiece from the last process, for example,
The cold layer of casting parts, bubble hole of casting parts, the sand layer of casting parts.Oxide skin of forging parts, surface crack of forging parts, decarburized layer of forging parts.
The surface roughness of CNC lathe machining, etc.
The processing cushion can increase the precision and roughness of workpieces.
The volume of processing cushion will affect the product quality and production efficiency.
If the processing cushion is too big, it will increase the CNC lathe machining sum of labor,
Decrease the production efficiency, increase the loss for raw material, tools and power,
And increase the production cost.
If the processing cushion is too small, the tolerances and defects from the last process cannot be removed,
The tolerances for loading and unloading cannot be removed too.
The principle is selecting the smallest processing cushion based on high quality.
Scope of application
1. Different metal parts CNC lathe machining
2. Fabrication, box structure, metal structure
3. Titanium, high-temperature alloy, nonmetal CNC lathe machining
4. Design and manufacture of wind tunnel combustion chamber
5. Design and manufacture of non-standard types of equipment
6. Design and manufacture of molds
Types of equipment
CNC mill CNC grinding machine CNC machine CNC center Laser welding
Electric discharge machining (EDM) Universal grinder WEDM-MS WEDM Cylindrical grinder Internal grinder Precision lathe China CNC lathe machining manufacturers
3 Levels of manufacturers in China
During the development of more than 50 years, there are 3 levels of manufacturers in China,
10% is a top-quality manufacturer, 20% middle quality manufacturer, and 70% low quality & cheap price manufacturer.
The global markets
At present, many markets are growing all over the world, such as Poland, Czech, Turkey in Europe, Thailand, Vietnam, the Philippines, India in Asian, Brazil in South America.
Compared to these new growing markets, China has many advantages based on high quality.
China CNC lathe machining market developing
In the past, everybody think made in China is for cheap and low quality,
It’s because China doesn’t have high precision types of equipment and skilled workers,
It looks like these new growing markets very much.
But now, 10% top quality manufacturer is fully changed,
Their core advantage is high quality, they compete with European and North American famous factories.
Introduction of Sinster
Ningbo Sinster Machine Co., Ltd is one of 10% top quality manufacturer,
You have no risk to cooperate with Sinster,
As many famous brands already choose Sinster and cooperate for long-term,
Such as Supernova, Pelican, ELKA, Cal-van Tools, Firepro, Tecflo, SEB, Keyence, MAUL, RTS, etc.
You can visit the website at www.syluecncmachining.com to find more information,
Don’t forget to send inquiry to e[email protected]
By Sunny Tang
The quotation of precision machinery parts is mainly composed of three points: First one is Machining material, second is precision machining cost, and the third one is management cost. Every point will affect the price. Kanou Precision keep to take “Creat benefits to the customer” as the cause of action, and constantly to increase the benefits and reduce the cost for the customer.
The customer sends as attachment drawing to Kanou Precision for quotation, This Precision Machined component is a plate. Customer required material is tin bronze, and it has several positions with High precision. Tin bronze material is relatively soft, The machining cost will be higher to sure these high precision sizes. and it will use electrical discharge machining, it will take a long time to do this processing. But we still gave the quotation on time according to the customer's requirements, the cost is relatively high.
At the same time, We tried to ask the customer about the purpose of choosing tin bronze as the material, and what requirements he wants. His main request has two points: One is the precision machined part must be Completely nonmagnetic, secondly, it must be wear-resisting. After understanding the customer's quality requirements, Kanou Precision’s sales and technical engineer have the meeting to discuss this project immediately.
After much thought, we thought of replacing the material as tungsten copper. The tungsten copper can meet all character that tin bronze have. Even though the cost is higher than tin bronze, but tungsten copper can reach more high precision on processing, and the machining cost is much lower. the hardness and toughness of tungsten copper are better than tin bronze, and the wear-resisting is also better.
so it will be a good proposal to change the material as tungsten copper. then we put this proposal to the customer immediately , and also make new quotation to him to compare. It saved 600RMB/piece compared with the first quotation. Customer full of praise for us after checking this suggestion, as this proposal not only solved all requirements and have better quality, it also reduced much cost for them.
Kanou Precision not only provide precision machining service, but also provide a better solution. No matter you have precision machining request, or machining solution request, we can meet all of your requirements. If you have any question or inquiry, please feel free to contact us. We will do our best to serve you.
By Sunny Tang
There are many advantages for precision machining, the most obvious part is it can reach to high precision that the normal way can’t do. Precision also depends on precision processing equipment and accurate control system, and use the precision mask as an intermediary, to achieve small control for precision by removal or addition.so what specific characteristics for precision machining? Let engineer from Kanou Precision introduce the details now:
一，Precision parts cutting processing
There are mainly precision turning, mirror grinding and grinding. By using single crystal diamond turning tool with a fine grinding to do micro-turning, and the thickness can be around 0.01mm, It often is used to machine high precision and high polishing parts that is non-ferrous metal materials with Spherical surface, aspheric surface, surface.
二，Precision Parts Machining
When the precision machining use nm, even use 0.1nm as the target, The Cutting processing can’t meet the requirements, then we need use special machining method like Application of chemical, electrochemical, thermal or electrical energy, etc, to achieve the High Precision requirements. These processes include mechanochemical polishing, ion sputtering, and ion implantation, electron beam exposure, laser beam processing, metal evaporation, molecular beam epitaxy, etc.
For the introduction about precision machining to you is here, You can visit our website:kanouprecision.com to know more news about us. Kanou specializes in the production of quality machined parts, precision turned parts, offering professional machining services at a competitive price and on timely delivery. With our extensive machining capabilities, we produce the most challenging precision machined parts covering all Industries especially in mass production in the automotive industry.
Our main products including metal assembly part, medical component, Light part, connectors, fasteners, automotive spare part, aerospace components, auto components, etc, we can also custom the precision part as customer’s requirement, and assembly service is also acceptable. Our purpose is to make more benefits to the customer.
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