In CNC turning, a chuck (or specialized clamp) holds bars of material and, as they are rotated, a tool is fed to the piece to remove material to create a specific shape. A turret, which holds a group of tools, is programmed to move along the work piece in three different axes of motion to shape the material according to the assigned specifications.
Since CNC turning involves removing material from a work piece, it`s considered a [subtraction machining" process. It is done on a lathe machine, which can be used on all types of material, from wood to metal to plastic. It can also be done on a mill or a drill press.
Turning is primarily used to create cylindrical parts. It can be completed on the outside or the inside of a work piece, which is known as boring. The process can also be used to conduct various other operations, including:
· Grooving: Cuts grooves or creates narrow cavities in work pieces.
· Taper turning: Creates a gradually decreasing diameter in a cylindrical shape.
· Drilling: Produces round holes, which are typically for screws and bolts.
· Facing: Cuts a flat surface perpendicular to the axes of the milling cutter.
· Parting: Separates one part of the work piece from another.
· Knurling: Creates vertical, horizontal or crossing lines on the work piece.
· Threading: Makes grooves that can be screwed into other objects.
CNC Turning process
l Creating a digital representation of the part in CAD
l Creating the machining code from the CAD files
l CNC lathe setup
l Manufacturing of the turned parts
Capabilities
Typical
Feasible
Shapes:
Thin-walled: Cylindrical
Part size:
Diameter: 0.02 - 80 in
Materials:
Metals
Ceramics
Surface finish - Ra:
16 - 125 μin
2 - 250 μin
Tolerance:
± 0.001 in.
± 0.0002 in.
Max wall thickness:
0.02 - 2.5 in.
0.02 - 80 in.
Quantity:
1 - 1000
1 - 1000000
Advantages:
All materials compatible
Disadvantages:
Limited to rotational parts
Applications:
Machine components, shafts, engine components
Suitable Materials for Turning
In turning, the raw form of the material is a piece of stock from which the workpieces are cut. This stock is available in a variety of shapes such as solid cylindrical bars and hollow tubes. Custom extrusions or existing parts such as castings or forgings are also sometimes used.
Turning can be performed on a variety of materials, including most metals and plastics. Common materials that are used in turning include the following:
l Aluminum
l Brass
l Magnesium
l Nickel
l Steel
l Thermoset plastics
l Titanium
l Zinc
When selecting a material, several factors must be considered, including the cost, strength, resistance to wear, and machinability. The machinability of a material is difficult to quantify, but can be following characteristics:
l Results in a good surface finish
l Promotes long tool life
l Requires low force and power to turn
l Provides easy collection of chips
Cnc Turning,Cnc Mill Turn,Cnc Milling And Turning,Precision Cnc Turning Suzhou FCE precision electronics Co., LTD , https://www.sjfukeyifcesz.com
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What is CNC Turning
Solid: Cylindrical
Alloy Steel
Carbon Steel
Cast Iron
Stainless Steel
Aluminum
Copper
Magnesium
Zinc
Composites
Lead
Nickel
Tin
Titanium
Elastomer
Thermoplastics
Thermosets
Very good tolerances
Short lead times
Part may require several operations and machines
High equipment cost
Significant tool wear
Large amount of scrap
Sichuan Pengzhou handles 5 working hours to play games and watch movie cadres
Sichuan Pengzhou handles 5 working hours playing games, watching movie diesel generators | diesel generators price / 2012-07-06
Pengzhou set up three inspection teams to inspect the cadres in style. Next, a group of 100 people will be set up to conduct unannounced unannounced visits.
In June, the three inspection teams led by the local Commission for Discipline Inspection conducted a “raiding†of the cadre style of work in each municipal department in Pengzhou City. In this surprise inspection, movie watching, game playing, music listening, and online shopping were all arrested. On the second day, the related disciplinary reports were promptly issued. Five cadres were either notified of the criticism or were deducted from the half-year target award. They also requested a profound review at the conference.
Next, an inspection team composed of hundreds of people will visit the cadres from time to time to make unannounced visits. This "storm" will become more violent and intensive in the future...
Spot checks
Five cadres caught the "current" at work
The surprise inspection was like “a lightning†for Hu earned (a pseudonym) in Pengzhou City Bureau of Land and Resources. During working hours, he was playing online games. He did not expect to be caught by the local inspection commission's unannounced visits to the Inspectorate. In the morning, she went to work on a violation of discipline, and received the results of the unit’s handling in the afternoon—deducting the half-year target award, conducting administrative performance warnings, being in charge of leadership, and making overall public criticism. In addition, he has to make a profound written review at the National Land Bureau staff meeting.
This is not the only case of the day. The working computer of Deng Ke (a pseudonym) of Hongyan Township Finance Office is on the shopping website; Xu Asia (a pseudonym) of Pengzhou City Health Bureau is browsing the movie website and playing music; Liu Wen (a pseudonym) of Gonglin Village of Longfeng Town is in the administration of the town. The computer in the hall looked at the movie with relish; the horses in the town of Bailu (a pseudonym) and Zheng Xiaoke (a pseudonym) in Zhihe Town were all found to have nothing to do with work during work hours.
The investigation found that Deng Ke of Hongyan Township was inquired online about the performance of the town's July 1 singing competition costumes according to the arrangements of the town party committee, and there were problems with the style of the other five cadres. After discovering the problem, the inspection team exchanged opinions with the main leaders of the unit, and asked the unit to rectify existing problems in a timely manner, dealt with the relevant personnel seriously, and even carried out a responsibility investigation for the ineffective supervision and control of the leaders.
Among them, Xu Asia was warned of its administrative effectiveness, made a written review, reported the criticism at a general meeting and reviewed it, and deducted 10% of the year-end target performance pay. Liu Wen was reportedly criticized by the town and asked to publicly review and deduct personal annual year-end target performance wages at the township and village cadre conference by 30%. The staff of the town service hall did not find and stop Liu Wen’s behavior in a timely manner, and conducted criticism and education. Ma Yong was publicly criticized and asked for a review at the conference. He punished him with 200 yuan in cash according to the commuting system, and the mayor held talks with the leaders in charge of the work. Zheng Xiaoke was severely criticized for education and asked for a written review at the township and village cadre conference and a fine of 200 yuan was imposed. The director of the office was held accountable for administrative responsibilities and imposed a fine of 100 yuan and a fine of 200 yuan for the leadership office.
100 people group
Unannounced unannounced visits to cadres
Why do we need to "cut a knife" by a cadre with a problematic style? Xiong Yamei, deputy secretary of the Pengzhou Municipal Commission for Discipline Inspection, said in an interview with a reporter from Chengdu Commercial Daily yesterday that this year is the implementation of the "Five Strategy of Developing Cities in Chengdu" and implementation of the strategy of "4211" in Pengzhou City. "The execution of cadres must be guaranteed. â€
After Chengdu convened a mobilization meeting for the practice of cadre education practice, Pengzhou immediately organized the implementation of the study and quickly introduced a program of practical activities. On the one hand, local party members and cadres are required to investigate and correct themselves, identify the poor performance and outstanding problems of the cadre team in the style of work, and thoroughly analyze the ideological roots of the problem; on the other hand, take various measures to carry out rectification. For example, according to the requirements of the “six investigations and six observations†of Chengdu's cadre theme practice activities, the four aspects of work discipline, personnel outreach, window unit services, and comprehensive urban-rural environmental governance have been intensively rectified and achieved substantial results.
In the next step, in addition to setting up a report hotline and an email address, Pengzhou will also use unannounced visits to expose negative examples and conduct accountability in local media. According to Xiong Yamei, Pengzhou will establish a supervision team with hundreds of people and will make unannounced unannounced visits to the development of educational practices in various departments. "Blank coping, walking through the court and finding corrective questions are incomplete and incomplete. They must 'make up classes'!" Xiong Yamei said that all townships and departments must establish and improve the daily supervision and inspection mechanism for the cadre troop style, early warning, early greeting and timely discovery and Correct the problem. (Chengdu Commercial News reporter Lei Haoran)
Jinjiang District
Announce cadre style report phone
Yesterday, Jinjiang District announced a report on educational activities in the style of work, 82000800, inviting the public to participate in helping party members and cadres to find out the problems.
Wuhou District
Every Thursday night Party members cadres learn Party Constitution
Wuhou District innovated the "six classrooms" for party members and cadres learning during the practice of cadre education, namely leadership classroom, 7:30 classroom, mobile newspaper classroom, experience classroom, online classroom and mobile classroom. All party members and cadres were asked to read the "CPC Constitution" and the speeches of the leaders of the central government, provinces, cities, and districts, and other important materials at 7:30pm every Thursday.
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