Short Answer
Most EDM and Wire EDM Machines selection errors start with a model or price before defining the part, output and quality; rely on one catalogue figure; or ignore trials, auxiliaries, support and total cost.
Mistake 1: Starting with price or model
Price matters, but it does not prove fit. Start with the part, process and demand, then request a configuration that serves them.
Mistake 2: An incomplete application file
If the path is through-cut and wire can pass, wire EDM is a strong candidate. Blind cavities and electrode-transferred shapes usually point to sinker EDM.
Mistake 3: Relying on one headline figure
Both require conductive material. Review heat treatment, start holes, workholding, surface condition and electrode manufacture where applicable.
Mistake 4: Ignoring auxiliaries and full process
Define tolerance, roughness, acceptable passes and thermal-fluid stability. Unneeded precision adds time and cost.
Mistake 5: Skipping an acceptance trial
Include wire or electrode, filters, dielectric, power, programming, supervision and maintenance, then compare cost per good part.
Mistake 6: Ignoring downtime and support
Purchase price does not show failure, response, spares and training impact. Include them in risk and total-cost evaluation.
Mistake 7: No owner or measurement
Assign an implementation owner and post-startup measures such as good output, quality, downtime and cost. Otherwise success cannot be proven.
Frequently Asked Questions
What is the highest-risk mistake?
Buying before the application and acceptance criteria are defined.
Is brand name enough?
No. Evaluate the actual configuration, local support and application result.
How is bias reduced?
Use one scoring matrix, a documented trial and a cross-functional team.
Next Step
Share your part, material, target output and site requirements with SAKKARY MACHINERY for a technical review of EDM and wire EDM machines.
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