Brazing technology and heat treatment: brazing and high-temperature brazing, annealing processes, welding and leak testing.
Harnischmacher GmbH
New on Amplifa
About Harnischmacher GmbH
Harnischmacher GmbH is a contract manufacturer for brazing technology and heat treatment with experience dating back to 1981. At its core are vacuum brazing, protective gas brazing and induction brazing, with which components are joined into solid, tight and flux-free joints – even with complex geometries, multiple joint points and different material combinations. Materials processed include steel, stainless steel, copper, carbide (hard metal) and ceramics, as well as nickel-based brazing filler metals. In addition, the company offers heat treatments such as recrystallization annealing, normalizing, stress-relief annealing and soft annealing, welding processes (CMT, laser, TIG, resistance), material testing and its own toolmaking. The equipment portfolio includes five vacuum furnaces (up to 2,000 × 900 × 900 mm), five protective gas furnaces, four induction systems, three welding robots, nine welding systems and eleven leak testing stations. Customer industries include tool and mould making, the automotive industry, wear protection, mechanical and plant engineering as well as vacuum and metrology technology.
- Processes
- Vacuum brazing, Protective gas brazing, Induction brazing, Recrystallization annealing, Normalizing, Stress-relief annealing, Soft annealing, CMT welding
- Materials
- Steel, Stainless steel, Copper, Carbide (hard metal), Ceramics, Nickel-based brazing filler metals, Vacuum brazing, Protective gas brazing
- Certificates
- ISO 9001
- Founded
- 1981
- Industries
- Tool and mould making, Automotive industry, Wear protection, Mechanical and plant engineering, Vacuum and metrology technology, Conveying technology
- 01
Brazing consultancy and design support
- 02
Material testing and process design
- 03
Pre-treatment and face grinding of brazing surfaces
- 04
Pre-assembly and pre-fixturing
- 05
Filler metal application (brazing paste, brazing rings, brazing foils)
- 06
Brazing (vacuum, protective gas, induction) or welding / heat treatment
- 07
Inspection and documentation
- 08
Component marking
- 09
Packaging and logistics
Materials and Processes
Vacuum brazing
Brazing and high-temperature brazing in fine and high vacuum for complex geometries and vacuum-tight joints, up to 2,000 × 900 × 900 mm.
Protective gas brazing
Brazing in continuous furnaces under H2, H2/N2 or endothermic gas, up to 600 × 185 mm, among other things for automotive components.
Induction brazing
Process under N2 or forming gas for a wide variety of geometries and flexible process selection.
Heat treatment
Recrystallization annealing, normalizing, stress-relief annealing and soft annealing; vacuum brazing and hardening can be combined in a single process.
Steel
Base material for brazed and welded assemblies, among other things in wear protection.
Stainless steel
Material for vacuum-tight components in vacuum and metrology technology.
Copper
Processed among other things for bushings and components in wear protection.
Carbide (hard metal)
Wear-resistant hard-material layer, joined in a solid bond with cost-efficient base materials.
Ceramics
Brazeable in combination with metallic materials for special applications.
Nickel-based brazing filler metals
Filler metals for high-strength, temperature-resistant joints in brazing and high-temperature brazing.
Locations
Brazing technology, heat treatment, welding and toolmaking production
- Materials
- Steel, stainless steel, copper, carbide (hard metal), ceramics
- 5 vacuum furnaces (fine/high vacuum, max. L 2,000 × W 900 × H 900 mm)
- 5 protective gas furnaces (H2, H2/N2, endothermic gas)
- 4 induction systems (N2, forming gas)
- 3 welding robots (CMT, laser)
- 9 welding systems (TIG, resistance)
- 11 leak testing stations (air, helium)
Components and Applications
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vacuum brazingJoining | – | 2000 mm × 900 mm × 900 mm | – | – | Steel, Stainless steel, Copper, Carbide (hard metal), Ceramics |
| Protective gas brazingJoining | – | 600 mm × 185 mm | – | – | Steel, Stainless steel, Copper, Carbide (hard metal), Ceramics |
| Induction brazingJoining | – | – | – | – | Steel, Stainless steel, Copper, Carbide (hard metal), Ceramics |
| Recrystallization annealingHeat treatment | – | 2000 mm × 900 mm × 900 mm | – | – | – |
| NormalizingHeat treatment | – | 2000 mm × 900 mm × 900 mm | – | – | – |
| Stress-relief annealingHeat treatment | – | 2000 mm × 900 mm × 900 mm | – | – | – |
| Soft annealingHeat treatment | – | 2000 mm × 900 mm × 900 mm | – | – | – |
| CMT weldingJoining | – | – | – | – | – |
| Laser weldingJoining | – | – | – | – | – |
| TIG weldingJoining | – | – | – | – | – |
| Resistance weldingJoining | – | – | – | – | – |
| Hardening (in combination with vacuum brazing)Heat treatment | – | 2000 mm × 900 mm × 900 mm | – | – | Tool steel |
| Face grinding (brazing surfaces)Surface treatment | – | – | – | – | – |
| Leak testing (pressure differential and helium, down to 10⁻¹² mbar·l/s)Testing | – | – | – | – | – |
| Visual inspection and dimensional check (caliper gauging)Testing | – | – | – | – | – |
| Filler metal application (brazing paste, brazing rings, brazing foils)Joining | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vacuum furnace | – | 5 | max. L 2,000 x W 900 x H 900 mm, fine and high vacuum | – | – |
| Protective gas furnace | – | 5 | max. W 600 x H 185 mm, H2, H2/N2, endothermic gas | – | – |
| Induction system | – | 4 | N2, forming gas | – | – |
| Welding robot | – | 3 | CMT and laser welding | – | – |
| Welding system | – | 9 | TIG and resistance welding | – | – |
| Leak testing station | – | 11 | Testing with air and helium | – | – |
Additional services
Quality and Testing
Quality assurance includes visual inspection, dimensional checks (caliper gauging), straightening and leak testing with pressure differential and helium down to 10⁻¹² mbar·l/s on eleven test stations. Process parameters such as temperature profiles and holding times are recorded and documented seamlessly.
| Evidence | Company |
|---|---|
| ISO 9001 |
History
- 1981
Founding of Harnischmacher GmbH; company motto: "Experience that connects. Since 1981."