Experience, innovative power and know-how.
| Specialist for asymmetrical and low-tolerance moulded parts.
60 years of experience, combined with a drive for innovation which is always one step ahead of the customer requirements, is our foundation for the highest and market-oriented production qualities.
HECKLER AG specialises in asymmetrical mouldings, up to a unit weight of approx. 200 g made of steel, and manufactures them in large series.
| The construction is directly connected to the technical possibilities.
The special possibilities and qualities of cold forging ultimately determine the shape and characteristics of the construction. Our know-how is the guarantee for the shape stability and the permanent strength of the workpieces.
The following forms are possible:
TOLERANCES IN THE DIRECTION OF THE STROKE MOVEMENT
approx. 0.2 mm (depending on the size of the tolerated area or edge), greater precision can be achieved through calibration or post-machining.
SMALLEST MATERIAL THICKNESS AFTER FORMING
approx. 0.5 mm – measured axially in stroke direction (even less possible in individual cases).
TOLERANCES OF FORMS DETERMINED BY THE TOOL CONTOURS
approx. 0.01 mm (depending on the size of the part and the tool load), greater precision can be achieved through calibration, post-machining or punching respectively.
STRONGLY ASSYMETRIC FORMED PARTS
can be produced.
not necessary, save for a few exceptions, e.g. cones (0.2° to 2°), depends on the component height.
INTERNAL AND EXTRENAL TEETH
Tooth geometries can be made with a high degree of dimensional accuracy. A gear modulus of 1 is possible.
CIRCUMFERENTIAL PUNCHED EDGES
necessary depending on the individual pieces or processes.
INTERNAL AND EXTRENAL TEETH
Advantages of pressed gearing: continuous fibre orientation, increased solidity in the gearing through cold working, gearing connected with base.
Undercuts can be made with segmented (axially divided) tools, but should be avoided if possible or made by machining, as the processes required are very elaborate and tool-intensive. The “Two-piece design” is an alternative in which individual components are pressed, which are then joined together by laser-welding, for example.
SHARP CORNERS AND EDGES
Radius < 0.1 mm can only be made by machining, radius > 0.2mm can be made using extrusion (depending on parts) Large radii are preferable from a production point of view!
PINS AND BOLTS
With cold impact extrusion the creation of pins is also possible on opposite sides. With one-sided pins the transfer of material is not necessary like with fine blanking, for example. The maximum pin height is 2.5 x diameter.
Pressed surfaces can reach Ra 0.2. The surface of the tool is mirrored in the component!