Overview
Stress relieving reduces residual stress, improves dimensional stability, and prepares parts for machining, fabrication, or service.
We offer:
Why Stress Relieving Matters
Thermal stress-relieving is the preferred method of reducing or eliminating residual stress, and the only form of stress-relieving that will lower hardness of burnout plate edges to improve machinability.
Our Furnace Capabilities
We use car bottom furnaces with no direct flame impingement on parts being drawn, tempered, or stress relieved. The furnaces are multiple-zone units designed for evenly distributed heating throughout the chamber.
Exceptional furnace capacity enables us to handle oversized industrial components that exceed the capabilities of many heat treating facilities, delivering reliable results for even the largest and most complex applications.
Available Furnace Sizes
Common Applications
Stress relieving today often requires more than simply heating a part and letting it cool. Some specifications call for a controlled rise to temperature, a defined hold time, and a controlled cool down to ambient conditions. It is commonly used for:
• Weldments
• Fabricated Assemblies
• Burned Plate Components
• Machined Parts
• Heavy Structural Components
• Post-Weld Heat Treat Projects
Quality, Control & Documentation
Our continued commitment to quality and service has been enhanced by the installation and documentation of:
Why Choose Chicago Flame Hardening?
Large capacity furnaces
Multi-zone, evenly distributed heating
Documented process control
Traceable certifications
Customizable cycles
Multiple thermal processing services in one facility
Plan stress relieving around your manufacturing sequence
Thermal stress relieving helps reduce residual stresses in weldments, burned plate components and industrial fabrications. The material, previous processing and governing specification determine the appropriate thermal cycle and where it belongs in the manufacturing sequence.
Coordinate with machining and inspection
Identify which operations are complete and which remain. When specified, send the required heating rate, holding temperature and duration, cooling requirements, and process documentation. If the drawing does not define a cycle, provide the material grade and intended use for review.
What to send for a stress-relieving quote
Include the drawing, overall dimensions, weight, quantity and delivery schedule. Identify dissimilar materials, previous heat treatment and final machining requirements. State any requirements for direct thermocoupling, process records or a particular acceptance specification. Review our furnace sizes and weight and dimension information when preparing your inquiry.
Will stress relieving straighten a bent part?
Stress relieving addresses residual stress; it is not a guaranteed correction for existing distortion. If a component is already bent or out of alignment, include its measured condition and required tolerance so mechanical straightening can be evaluated.
Request a project quote, email sales@cflame.com, or call (219) 397-6475.
