Quantcast
Jump to content
  • Welcome to Auto Parts Forum

    Whether you are a veteran automotive parts guru or just someone looking for some quick auto parts advice, register today and start a new topic in our forum. Registration is free and you can even sign up with social network platforms such as Facebook, Twitter, Google, and LinkedIn. 

     

Erica Zhu Feilong Jiangli

Characteristics of automobile curved surface drawing parts

Recommended Posts

    Automobile surface drawing parts have the following characteristics:

    1.Deformation characteristics

    The deformation characteristics of large curved surface parts are as follows: the periphery is deep drawing, and the interior has bulging components. The surface shape is supplemented by the exterior material of the pressing surface and the interior by the material extension to meet the bulging requirements. At the same time, due to the deep drawing depth and complex shape, the distribution of deformation parts is uneven. Therefore, controlling the direction and velocity of material is extremely important. The part of large curved surface is easy to wrinkle and crack easily.

    2.There must be enough stable blank holder force.

    Large curved surface parts require not only certain drawing force, but also enough stable blank holder force in the process of drawing. This kind of workpiece is often a large contour size, deep space surface, so the need for deformation and blank holder force are larger. In the ordinary single-action press with air cushion, the blank holder is only about 1/6 of the nominal tonnage, and the blank holder force is not stable, it is difficult to meet the technological requirements of such parts, so in a large number of production, the drawing of such parts are carried out on double-action press. The double-action press has two sliders for drawing and blank-holder, i.e. inner slider and outer slider. The blank-holder force can reach more than 40% - 50% of the total drawing force. It can satisfy the requirement of uneven distribution of deformation around the workpiece, and the blank-holder force is stable, and it is easy to get the deep-drawing parts with better stiffness.

    3.The drawing parts must have enough stiffness.

    Most of these parts are used as the exterior of the machine, requiring sufficient stiffness (no trembling and noise in use) and dimensional stability (to ensure the quality of welding and assembly). This requires that all parts of the material be subjected to uniform tensile stress (ideally a two-way tensile stress state) in the drawing process, and that the tensile stress exceeds the yield limit, but is lower than the strength limit, so that the elastic recovery of the workpiece is reduced to a minimum, so that the shape is not distorted, but also not rupted.

Po50z9.jpg

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Topics

    • By Car Part
      Do you want to change your car part? At link hidden, please login to view, we are the most significant dealers in car parts in Australia. We provided all the parts of every car with good quality and reasonable price. New and used car parts are available in good condition. Professional workers are there to handle your car parts and give the best results. We are the most trusted store in Melbourne, and you never get any complaint from our side. We provide various car parts such as rims, alloys, engines, wheels and many more according to customer requirement. We are the one who buys and sells the car parts. Similarly, we also provide the feature to find your car part by yourself from our website. 
       
       

    • By sneedspeed
      If you are searching for the new 
      link hidden, please login to view , then you are at the right place. Our website “Sneed4speed” provides best quality Mini Cooper parts since 2006. Get the best deals on Mini Coopers engines and high speed aerodynamic upgrades, which includes rear wings. Cost of Rebuilding or Replacing an Engine In a very general sense, you can expect the cost of rebuilding your engine to run you anywhere between $2,500 and $4,500 depending on the parts as well as labor
  • Our picks

    • National Pronto Association, Automotive Distribution Network Announce Merger
      The leadership of National Pronto Association and Automotive Distribution Network announced today the merger of the two organizations. As of Jan. 1, 2021, the newly formed organization will be known as the Pronto Automotive Distribution Network.

      Headquartered in Grapevine, Texas, Pronto Automotive Distribution Network will be led by Robert Roos as president and David Prater as executive vice president. The combined organization will represent more than 250 members in North America with an estimated revenue of approximately $5 billion annually. Members will continue to market under the Pronto, Parts Plus and Auto Pride names.

      In addition, Pronto Automotive Distribution Network, together with Federated Auto Parts, will comprise the Automotive Parts Services Group (The Group). 
      • 0 replies
    • Advance Auto Parts To Sponsor NASCAR Weekly Series In Multiyear Agreement
      DAYTONA BEACH, Fla. & RALEIGH, N.C.--(BUSINESS WIRE)--As NASCAR Weekly Series sanctioned events begin to return at select tracks across North America, NASCAR and Advance Auto Parts (NYSE: AAP), a leading automotive aftermarket parts provider, today announced a multiyear official partnership, designating Advance as the series entitlement sponsor. As part of the agreement, Advance also becomes the “Official Auto Parts Retailer of NASCAR.”

      "It's great to have Advance join us in welcoming the return of NASCAR-sanctioned grassroots racing," said Ben Kennedy, vice president, racing development, NASCAR. "Advance’s commitment to our Weekly Series will develop some of the brightest NASCAR talent across North America. Advance has a long history in racing, and we’re thrilled to see its expanded presence from the grassroots all the way through our national series.”
      • 0 replies
    • Advance Auto Parts Announces Purchase of the DieHard Brand from Transformco
      Advance Auto Parts, Inc. (NYSE: AAP) has acquired the DieHard brand from Transform Holdco LLC (“Transformco”), for $200 million utilizing cash on hand.

      “We are excited to acquire global ownership of an iconic American brand. DieHard will help differentiate Advance, drive increased DIY customer traffic and build a unique value proposition for our Professional customers and Independent Carquest partners. DieHard has the highest brand awareness and regard of any automotive battery brand in North America and will enable Advance to build a leadership position within the critical battery category,” said Tom Greco, president and CEO, Advance Auto Parts. “DieHard stands for durability and reliability and we will strengthen and leverage the brand in other battery categories, such as marine and recreational vehicles. We also see opportunities to extend DieHard in other automotive categories. We remain committed to providing our customers with high-quality products and excellent service. The addition of DieHard to our industry leading assortment of national brands, OE parts and owned brands will enable us to differentiate Advance and drive significant long-term shareholder value.”
      • 0 replies
    • AmazonBasics 6-Pack High Mileage Motor Oil - Synthetic Blend
      AmazonBasics High Mileage Motor Oil - Synthetic Blend

      AmazonBasics high-mileage synthetic-blend motor oil offers an enhanced level of protection for engines over 75,000 miles. Its synthetic blend combines conventional oil with synthetic for cost efficiency with some of the benefits of a full synthetic. An important part of routine maintenance, the motor oil works well for anything from topping off levels to complete oil changes. Whether it’s a beloved older vehicle or one with an uncertain maintenance history, help protect its engine with AmazonBasics high-mileage, synthetic-blend motor oil.
      • 3 replies
    • OEM vs. Aftermarket Parts for Your Car: How to Choose
      When selecting parts for a car repair, it pays to know the differences between original and aftermarket parts. Whenever possible, get estimates for both.

      Choosing between original and aftermarket car parts — and even used parts of either type — is all about squaring your priorities with your budget.

      You’ll have different options depending on the part and the shop. And the best choice will depend on whether you’re trying to keep repairs cheap, restore your car’s appearance after a wreck or soup up your ride.

      Original equipment manufacturer (OEM) parts match those that came with your car, and are of the same quality as its original parts. They’re also the most expensive.
        • Like
      • 2 replies
  • Similar Content

    • By 袁春凤 (Tiffany)
      Chrysler (China) Automobile Sales Co., Ltd. filed a recall plan with the State Administration of Market Supervision and Administration in accordance with the requirements of the Regulations on the Management of Defective Automobile Product Recall and the Implementation Measures of the Regulations on the Management of Defective Automobile Product Recall. It decided to recall some Jeep New Herdsman models from November 20, 2018, totaling 35. The car.
      During the period from May 7, 2018 to May 10, 2018, a total of 35 new Jeep models were produced.
      Some of the front suspension thrust rod brackets within the scope of this recall may not be welded properly, resulting in the separation of the thrust rod bracket from the frame, resulting in the reduction of vehicle steering capacity, increasing the risk of collision, and there are potential safety hazards.
    • By 袁春凤 (Tiffany)
      The phenomenon that two objects move relative to each other to produce motion resistance between their contact surfaces is called friction, which is called friction. The existence of friction not only increases the power consumption, but also causes the wear of parts' contact surfaces. Therefore, lubricating oil is usually used between the relative moving surfaces of automobile parts to reduce friction. Failure of automotive parts 75% is caused by friction.
      Friction can be divided into dry friction, liquid friction, boundary friction and mixed friction according to the lubrication state of the parts.
      (1) dry friction
      The friction between the frictional surfaces without any lubricating medium is called dry friction.
      When the parts are in the state of dry friction, the surface of the parts is abraded sharply, so the surface of the moving parts of the automobile should avoid the occurrence of dry friction as far as possible.
      Dry friction and boundary friction are the main friction between the upper part of cylinder wall and piston ring. Dry friction will occur when the journal and bearing are subjected to impact load in the working process.
      (2) liquid friction
      Two the friction of the friction surface when the lubricant is completely separated is called liquid friction.
      In liquid friction, the two friction surfaces are completely separated by a layer of lubricating oil film with a thickness of 1.5-2.0um, which avoids direct contact between the working surfaces of the two parts. Friction only occurs between the lubricating fluid molecules, so the friction resistance is very small, and the wear of the parts is very slight.
      Most of the relative motion parts of a car are carried out under the condition of liquid friction (for example, crankshaft and bearing).
      (3) boundary friction
      Two friction surface separated by a very thin boundary film is called boundary friction.
      The oil film thickness is usually below 0.1um. Friction only occurs between the outer molecules of the boundary film, reducing the friction and wear of the parts. But its thickness is very small, and it is easy to be destroyed by impact and high temperature, so it is not as reliable as liquid friction.
      For example: between cylinder wall and piston ring; if the work crankshaft and journal between the insufficient supply of lubricant, easy to produce boundary friction.
      (4) Mixed friction
      The friction between two friction surfaces in the presence of dry friction, liquid friction and boundary friction is called mixed friction.
      In the actual working state, the parts usually work under the mixed friction state, and the friction state varies with the working conditions.

    • By Erica Zhu Feilong Jiangli
      Automobile parts refer to the components of each unit of the automobile and all consumable materials serving the automobile. They can be divided into automobile parts, Automobile standard parts and automobile materials. The following is a detailed introduction.
      (1)Auto parts are divided into parts, assemblies, component, and body panels.
      Parts: the basic manufacturing unit of a car. It is an integral part that can no longer be disassembled. Such as: piston ring, piston, valve, impeller and so on.
      Assembly: a combination consisting of more than two parts and acting as a single part. For example, a connecting rod with a cover, a pair of bearing shells, and a cylinder head with a valve guide.
      Component: a combination consisting of several parts or assemblies, but can not function independently. For example, transmission cover, cooler cover, automobile steering connector, water pump and so on. Sometimes it is also called "half assembly".
      Body panels: formed by sheet metal stamping, welding, and covering automotive body parts such as: radiator cover, leaf plate, etc.
      (2) automotive standard parts
      Designed and manufactured according to the national standards, the same parts are unified in shape, size, tolerance, technical requirements, and can be used in a variety of instruments and equipment, and interchangeable parts are suitable for automotive standard parts such as bolts, gaskets, pins, keys, etc.
      (3) automotive materials
      Automobile operating materials, such as various oils, solutions, automotive tires, accumulators, standard bearings (non-special), etc.
      Most of the products produced by non-automotive industry and used by automobiles, generally not included in the catalogue of various types of automotive accessories, also known as "horizontal products".
      link hidden, please login to view
×
×
  • Create New...

Copyright © 2020 AutoPartsForum Powered by Invision Community