Sinker EDM Specialist in Hubertus, Wisconsin at AJ Tool LLC

MISSION & CORE VALUES:

We strive to provide our business partners the mold design and build experience they expect and deserve. When our partners are successful, we are successful.

JOB PROFILE SUMMARY:

The Sinker EDM Specialist is responsible for operating and maintaining sinker EDM (Electrical Discharge Machining) equipment to produce high-precision mold components. This role requires a deep understanding of EDM processes, electrode design, and fine-tolerance machining. The Sinker EDM Specialist plays a critical role in supporting the production of complex injection molds with tight dimensional and surface finish requirements.

ESSENTIAL JOB DUTIES:

The individual in this position must be able to successfully perform the job duties listed below.

Responsibilities:

• Set up and operate sinker EDM machines to produce mold components to exact specifications.
• Interpret blueprints, CAD models, and work instructions to determine machining requirements.
• Design and fabricate electrodes using graphite or copper materials.
• Monitor EDM operations and make adjustments to maintain accuracy and surface finish.
• Inspect finished parts using precision measuring tools and ensure conformance to tolerances.
• Perform routine maintenance and troubleshooting of EDM equipment.
• Collaborate with toolmakers, CNC programmers, and engineers to optimize EDM strategies.
• Maintain accurate records of setups, tooling, and job progress.

QUALIFICATIONS:

Work Experience:

• 5+ or more years of related experience

Related Experience:

Experience in sinker EDM operations, mold making, or precision machining.

Education:

• Associate degree from a two-year college or technical school

Preferred educational background:

Technical diploma or certification in mold making, machining, or EDM technology.

Certifications/Tech expertise:

• Proficiency in sinker EDM machine operation (e.g., Sodick, Makino, Mitsubishi)
• Knowledge of electrode materials and design
• Familiarity with precision measuring tools and inspection techniques
• Understanding of mold design and steel types

PREFERRED QUALIFICATIONS:

• Experience with Makino Sinkers a Plus
• Strong attention to detail and craftsmanship
• Ability to work independently and as part of a team
• Experience with automated EDM cells and integrated metrology
• Good communication and documentation skills

PHYSICAL DEMANDS:

• Frequent standing, bending, and lifting (up to 50 lbs.)
• Use of hand tools, measuring instruments, and PPE
• Exposure to manufacturing environment conditions