Technology

The technology department is divided into sections: new product launches, technology, and construction. The department’s task is to develop processes for the production of new products with particular emphasis on forging and rolling technologies. Sections also deal with optimizing and improvement of processes used in production for bolts, screws, rivets, and bushings.

The cycle of work on the new product is presented on the example of a stud bolt (metric and plastic thread).

1. Stage of element design:
• selection of material grade depending on the required mechanical properties
• preparation of construction drawing

Finished product

2. Construction of the semi-finished product after the cold forging stage.
• selection of the measurements of the semi-finished product ensuring the certain measurements of the finished product after all production stages

Semi-finished product after the cold forging stage

3. Development of forging technology on a multi-operation press and thread rolling.
• development of the initial technological process of forging
• numerical analysis (process simulation) of forging using the special program (Simufact 12.0) based on the FEM finite element method

Distribution of distortion intensity on the inboard profile of the semi-finished product after the first stage of forging, reduction of the diameter in the die I

Distribution of distortion intensity on the inboard profile of the semi-finished product after the second stage of forging, initial upsetting and diameter narrowing in the slider I

Distribution of distortion intensity on the inboard profile of the semi-finished product after the third stage of forging, upsetting II

Distribution of distortion intensity in the last shaping operation, finishing upsetting

Distribution of distortion intensity in the area of its highest value

The grid of elements used for calculations

4. Analysis of the simulation in the following aspects: flowability, areas of maximum distortion intensity, and stress.

5. Development of the final version of the technological process of forging, including numerical analyses.

The successive stages of the technological process of cold forging

6. Construction of a set of tools for the developed forging process.

Assembly of tools

7. Industrial testing - execution of a preproduction batch.

Semi-finished products, preproduction, and finished products