Seminars (Englisch)

A Seminar/Workshop consists of a collection of individual topics, as can be found below.

Choose your own seminar by combining topics of your interest:

  • Individual topics can be found in the table below.
  • If you desire a seminar with a topic not found in the table below, please contact me.

A workshop for your company typically consists of the points below:

  • In-depth analysis of your technical challenge.
  • A seminar(or collection of), concerning necessary knowledge to understand your technical challenge.
  • A solution proposal (by round-table discussion).

Typically, discussion during and after the presentation of a topic usually extends the duration considerably.

Thermoforming Topics

Process Nr Single Topic hours
1 Plastics 1-1 Influence of stress in extruded film (sheets) on the thermoforming process. 0.5
1-2 Free shrinkage of plastic film (sheet) as a proof of reproducibility. 0.5
1-3 Processing shrinkage in thermoforming. 1
1-4 Explanation of shrinkage, computational proof, correct practical determination 0.5
1-5 Bioplastics in thermoforming. 0.5
1-6 Multilayer and barrier materials. 0.5
1-7 Avoiding moisture in plastic sheets. 0.5
1-mat-ABS ABS – basics for the thermoformers.  0.25
1-mat-HIPS HIPS – Thermoforming. Quality manufacturing with virgin and recycling material.  0.5
1-mat-PC PC – basics for the thermoformers.  0.25
1-mat-PE PE – Thermoforming behavior of PE-HD, PE-LD, PE-LLD.  0.5
1-mat-PET PET -Thermoforming behavior of APET (PET-A), PETG (PET-G) and CPET (PET-C).  0.5
1-mat-PMMA PMMA – basics for the thermoformers. Extruded and cast PMMA.  0.25
1-mat-PP PP – Thermoforming. Behavior in the SPPF- and MFPF-forming process.  0.5
2 Heating 2-1 Heating in thermoforming; Basics.
Heating elements, temperature control, power setting, reproducibility.
3 Forming  
3-1 Vacuum or pressure forming? 0.5
3-2 Preforming in thermoforming.
The preforming process decides the wall thickness distribution; the molding pressure decides the shaping definition of the part.
3-3 Chill-marks; Causes and prevention. 0.5
3-4 Webbing (Wrinkling); Causes and prevention. 0.5
3-5 Thermoforming of transparent parts. Rules, procedures and limits. 0.5
3-6 Twin sheet forming; Basics. 0.5
3-7 Cost comparison between twin sheet forming and standard thermoforming; Choosing the right process. 0.5
3-8 Thermoforming of thick films, especially on roll-fed machines.
Deformation risk – the difference to thin films.
3-9 Thermoforming of grained surfaces 0.5
4 Cooling 4-1 Cooling in thermoforming; Basics. (Contained in 7-1)
Calculation for mold cooling.
4-2 Central air cooling in sheet machines;
The consequences of cooling time, shrinkage and deformation.
5 Demolding 5-1 Demolding in thermoforming.  0.5
6 Deformation, Crazes 6-1 Deformation of thermoformed parts. Causes and avoidance. 0.5
6-2 Crazes in thermoformed parts. 0.5
7 Tool Design
7-1 Thermoforming tools.
Topics: Materials, positive or negative forming, design of the molding surface, processing shrinkage, substructures, design details such as draft angles, roughness, radii, exhaust air design, cavities, pre-stretchers, undercuts, flat moldings, transparent parts, hinged packaging, cooling / tempering design, heated tools, design errors.
(Includes 4-1, 7-2, and 7-3)
7-2 Positiv or negativ forming (included in 7-1) 0.5
7-3 Exhaust air cross-sections in thermoforming tools;
Calculation for type, number and size of exhaust air cross-sections (included 7-1).
8 Punching 8-1 Angel hair formation during punching. Causes and prevention. 0.5
9 Calculation-
Programs (Handover with training)
9-1 Choosing the right tool variant based on basic data. 0.25
9-2 Calculation of the size and number of exhaust air cross sections in the mold segment. 0.5
9-3 Calculation of tool temperature control, with consideration of the entire circuit. 3
9-4 Cycle time calculation for ILLIG sheet machines. 0.5
9-5 Cycle time calculation for automatic roll-fed thermoforming machines. 0.25
9-6 Calculation of the production costs of the thermoformed parts. 1.5
9-7 Deformation of flat parts compensated in mold manufacturing. 0.25
10 Troubleshooting 10-1 Error analysis of thermoformed parts. Excel sheet with filter function. Search via error group and single error; Result: hints and troubleshooting. 1
10-2 Starting up machines and tools.  0.5