Put together

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The assembly is in accordance with DIN 8593-1 a group of joining processes . Like all joining processes, it is used to join two or more workpieces. The serial number is 4.1. A distinction is made according to the following six procedures:

  • 4.1.1 Hang up, touch down
  • 4.1.2 Insertion, insertion
  • 4.1.3 Push into one another
  • 4.1.4 Hook in
  • 4.1.5 Adjusting
  • 4.1.6 Spread springy

Hang up, touch down

When laying on, putting on or also called layers , two parts are joined using gravity. In most cases, this creates a form-fitting connection. The connecting surfaces between the joining partners can fix the placed part in all dimensions so that it can neither rotate nor slip.

Insertion, insertion

Inserting or inserting is a method in which a part is inserted into a molded element of another part, for example inserting a spare wheel into the corresponding recess (spare wheel recess) of the vehicle.

Areas that are perpendicular to the joining direction (side walls) can be used as stops and also absorb lateral forces.

Push into one another

When sliding into one another, one part is pushed into or over another. A distinction is made between two variants:

  • Slide on or open: The outer part is pushed onto the inner part.
  • Pushing in or inserting: The inner part is pushed into the outer part.

When sliding inside one another, a fit is created between the joining partners, which distinguishes it from other related processes. There are no fits when placing or inserting. In contrast, when pressing in, high forces are required to connect, while these are relatively low when sliding into one another. It can also be used for clearance fits in which the joining partners can move against each other.

Hang up

When hanging, the components are hooked into tension springs and secured by them. The assembly effort is usually low and the forces transmitted are large, so that they have a large area of ​​application. Examples are tailgate hinges. The connections can be fixed or movable.


Setting is characterized by a suitable combination or sequence of pushing and turning. Adjusting takes place through a linear ( translational ) and then a rotary movement. The connection is held by a form fit, the opening can take place by overcoming static friction and / or a spring force and / or bypassing a locking step or opening a lock.

Typical are bayonet connections at openings of containers ( pressure cooker , fill cap for engine oil), tensile connectors ( BNC connector ), vibration-resistant versions for light bulbs and fuses (cars, machinery) and camera lenses .

The insertion of individual battery or accumulator cells in cylinder or button form in devices is usually done by straightening, oriented towards flat floor vs. protruding pole.

The panels of the laminate floor , stage platforms and work platforms are also set in. each made of aluminum profiles.

Dislocated joints of a person can - often with the assistance of a doctor - be repositioned powerfully by hand by one or more people.

Spread in spring

During the resilient spreading, the joining part is first elastically deformed. After inserting or pushing in, the elastic rebound occurs. Examples are clip connections , snap connections , expanding rings , sheet metal springs and retaining rings .


  • Feldmann, Schöppner, track: Handbook joining, handling, assembling , Hanser, 2014, pp. 222–225.

Individual evidence

  1. What exactly is laminate? Television educates, broadcast with the mouse, youtube.com, February 14, 2014, accessed July 5, 2018. Video (9:04) - locking mechanism manufacture and function 8: 00–9: 03/9: 04
  2. Ralf Werle: The broadcast with the mouse - How is a fire engine made? youtube.com, 2017, accessed July 5, 2018 - Video (54:39) Here: 18: 03–19: 18. - Aluminum profiles of the podium on the turntable ladder.