Workholding on a shaper — table slot form The top and sides of a shaper table are machined with which standard slot type for clamping and fixtures?

Introduction / Context:
Secure workholding is critical on shaping machines due to intermittent cutting and reversing forces. Standardized slots enable flexible clamping with bolts, nuts, and step blocks. Knowing the slot form used on shaper tables is basic shop knowledge.

Given Data / Assumptions:

• Conventional horizontal shaper with box-type table.
• Need to restrain fixtures against uplift and lateral loads.
• Compatibility with common clamping kits.

Concept / Approach:
T-slots allow the bolt head or T-nut to slide under the table surface within a re-entrant feature, providing a positive mechanical interlock that resists pull-out. Straight or L-shaped open slots lack this undercut and are not standard for machine tables.

Step-by-Step Solution:
Identify standard machine tool tables (milling, shaper, planer) → T-slots.T-slots accept T-nuts/bolts to clamp vises, angle plates, and work directly.Therefore, choose T-type slots.

Verification / Alternative check:
Any shaper/milling table parts diagram highlights nominal width and pitch of T-slots for accessory compatibility.

Why Other Options Are Wrong:
L- or I-type open slots fail to capture bolt heads; dovetail slots are used for slides/ways, not general clamping on table surfaces.

Common Pitfalls:
Confusing dovetail slideways (guide geometry) with table clamping slots; they serve different purposes.

Final Answer:
T-type slots