HPF has special process approvals from major OEM’s for things such as EDM, NDT, thread rolling and coating.
Skill& Capabilities
Our specifications
We have all the processes in house for to Reduce Time to Market.
We have made very important investments to have all the processes in house so as to make industrial production leaner and faster.
All our process technologies they have been improved and engineered to guarantee the quality required of us.
Hot forging
250 ton press – 1” 718 12 point bolt – 1850° 9 presses with capability to forge from .1900 – 1.500
NDT
HPF has a complete DESTRUCTIVE and NONDESTRUCTIVE test lab with many special process approvals for a variety of capabilities.
Thread Rolling
HPF HAS ONE OF THE LARGEST THREAD ROLL CAPABILITIES IN THE INDUSTRY.
Size ranges from 4-40 to as large at 5 inches in diameter. Thread roll setup is approved both dimensionally and by metallurgical review.
Statistical Process Control with Johnson Gages is used to verify nominal dimensions of the minor, major and pitch diameters. HPF holds several “special process” approvals for thread roll including fracture critical application approval with Lockheed Martin and Northrop Grumman.
CNC machinig
CNC lathe and mill work covers a wide range of processes including machining the head, lightening hole, dove tail recess, chamfer, drill head and or shank and many other special features specified by customer design.
Heat treated bolts typically require centerless grind which includes rough grind of the shank diameter and thread diameter ( TD ) followed by CNC work before returning for finish grind of the shank and TD. This brings the part to finish diameter dimensions.
Grinding also can produce custom features.
Quality control
Investments have expanded HPF’s in-house capabilities by adding a variety of processes to control lead time, quality and cost.
HPF has special process approvals from major OEM’s for things such as EDM, NDT, thread rolling and coating.